Average Velocity and Average Speed
PHXI03:MOTION IN A STRAIGHT LINE

362193 A cyclist starts from the centre \(O\) of a circular park of radius one kilometre, reaches the edge \(P\) of the park, then cycles along the circumference and returns to the centre along QO as shown in the figure. If the round trip takes ten minutes, the net displacement and average speed of the cyclist (in metre and kilometre per hour) is
supporting img

1 \(0,1\)
2 \(\frac{{\pi + 4}}{2},0\)
3 \(21.4,\frac{{\pi + 4}}{2}\)
4 \(0,21.4\)
PHXI03:MOTION IN A STRAIGHT LINE

362194 An object is moving in a straight line, according to the curve given in the graph, \({x(m)=t^{2}}\). Find the average velocity for the interval \({t=1 {~s}}\) to \({t=3 {~s}}\).
supporting img

1 \({9 {~m} / {s}}\)
2 \({4 {~m} / {s}}\)
3 \({4.5 {~m} / {s}}\)
4 \({1.5 {~m} / {s}}\)
PHXI03:MOTION IN A STRAIGHT LINE

362195 A particle moves along a straight line and its velocity depends on time as \(v = 4t - {t^2}\). Then for first 5 \(s\) the

1 Average velocity is \(25/3\,m/s\)
2 Average speed is \(10\,m/s\)
3 Average velocity is \(5/3\,m/s\)
4 Average velocity is Zero
PHXI03:MOTION IN A STRAIGHT LINE

362196 The position of an object moving along \({x}\)-axis is given by \({x=a t^{2}+b t+c}\), where \({a, b}\), and \({c}\) are constant and \({t}\) is time in second. Find the average velocity from \({t=0}\) to \({t=2 s}\).

1 \({2 a+b}\)
2 \({2 a+b+\dfrac{c}{2}}\)
3 \({b}\)
4 0
PHXI03:MOTION IN A STRAIGHT LINE

362197 A vehicle travels \(4\;km\) with speed of \(3\;km{\rm{/}}h\) and another \(4\;km\) with speed of \(5\;km{\rm{/}}h\), then its average speed is

1 \(3.75\;km{\rm{/}}h\)
2 \(3.50\;km{\rm{/}}h\)
3 \(4.00\;km{\rm{/}}h\)
4 \(4.25\;km{\rm{/}}h\)
PHXI03:MOTION IN A STRAIGHT LINE

362193 A cyclist starts from the centre \(O\) of a circular park of radius one kilometre, reaches the edge \(P\) of the park, then cycles along the circumference and returns to the centre along QO as shown in the figure. If the round trip takes ten minutes, the net displacement and average speed of the cyclist (in metre and kilometre per hour) is
supporting img

1 \(0,1\)
2 \(\frac{{\pi + 4}}{2},0\)
3 \(21.4,\frac{{\pi + 4}}{2}\)
4 \(0,21.4\)
PHXI03:MOTION IN A STRAIGHT LINE

362194 An object is moving in a straight line, according to the curve given in the graph, \({x(m)=t^{2}}\). Find the average velocity for the interval \({t=1 {~s}}\) to \({t=3 {~s}}\).
supporting img

1 \({9 {~m} / {s}}\)
2 \({4 {~m} / {s}}\)
3 \({4.5 {~m} / {s}}\)
4 \({1.5 {~m} / {s}}\)
PHXI03:MOTION IN A STRAIGHT LINE

362195 A particle moves along a straight line and its velocity depends on time as \(v = 4t - {t^2}\). Then for first 5 \(s\) the

1 Average velocity is \(25/3\,m/s\)
2 Average speed is \(10\,m/s\)
3 Average velocity is \(5/3\,m/s\)
4 Average velocity is Zero
PHXI03:MOTION IN A STRAIGHT LINE

362196 The position of an object moving along \({x}\)-axis is given by \({x=a t^{2}+b t+c}\), where \({a, b}\), and \({c}\) are constant and \({t}\) is time in second. Find the average velocity from \({t=0}\) to \({t=2 s}\).

1 \({2 a+b}\)
2 \({2 a+b+\dfrac{c}{2}}\)
3 \({b}\)
4 0
PHXI03:MOTION IN A STRAIGHT LINE

362197 A vehicle travels \(4\;km\) with speed of \(3\;km{\rm{/}}h\) and another \(4\;km\) with speed of \(5\;km{\rm{/}}h\), then its average speed is

1 \(3.75\;km{\rm{/}}h\)
2 \(3.50\;km{\rm{/}}h\)
3 \(4.00\;km{\rm{/}}h\)
4 \(4.25\;km{\rm{/}}h\)
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PHXI03:MOTION IN A STRAIGHT LINE

362193 A cyclist starts from the centre \(O\) of a circular park of radius one kilometre, reaches the edge \(P\) of the park, then cycles along the circumference and returns to the centre along QO as shown in the figure. If the round trip takes ten minutes, the net displacement and average speed of the cyclist (in metre and kilometre per hour) is
supporting img

1 \(0,1\)
2 \(\frac{{\pi + 4}}{2},0\)
3 \(21.4,\frac{{\pi + 4}}{2}\)
4 \(0,21.4\)
PHXI03:MOTION IN A STRAIGHT LINE

362194 An object is moving in a straight line, according to the curve given in the graph, \({x(m)=t^{2}}\). Find the average velocity for the interval \({t=1 {~s}}\) to \({t=3 {~s}}\).
supporting img

1 \({9 {~m} / {s}}\)
2 \({4 {~m} / {s}}\)
3 \({4.5 {~m} / {s}}\)
4 \({1.5 {~m} / {s}}\)
PHXI03:MOTION IN A STRAIGHT LINE

362195 A particle moves along a straight line and its velocity depends on time as \(v = 4t - {t^2}\). Then for first 5 \(s\) the

1 Average velocity is \(25/3\,m/s\)
2 Average speed is \(10\,m/s\)
3 Average velocity is \(5/3\,m/s\)
4 Average velocity is Zero
PHXI03:MOTION IN A STRAIGHT LINE

362196 The position of an object moving along \({x}\)-axis is given by \({x=a t^{2}+b t+c}\), where \({a, b}\), and \({c}\) are constant and \({t}\) is time in second. Find the average velocity from \({t=0}\) to \({t=2 s}\).

1 \({2 a+b}\)
2 \({2 a+b+\dfrac{c}{2}}\)
3 \({b}\)
4 0
PHXI03:MOTION IN A STRAIGHT LINE

362197 A vehicle travels \(4\;km\) with speed of \(3\;km{\rm{/}}h\) and another \(4\;km\) with speed of \(5\;km{\rm{/}}h\), then its average speed is

1 \(3.75\;km{\rm{/}}h\)
2 \(3.50\;km{\rm{/}}h\)
3 \(4.00\;km{\rm{/}}h\)
4 \(4.25\;km{\rm{/}}h\)
PHXI03:MOTION IN A STRAIGHT LINE

362193 A cyclist starts from the centre \(O\) of a circular park of radius one kilometre, reaches the edge \(P\) of the park, then cycles along the circumference and returns to the centre along QO as shown in the figure. If the round trip takes ten minutes, the net displacement and average speed of the cyclist (in metre and kilometre per hour) is
supporting img

1 \(0,1\)
2 \(\frac{{\pi + 4}}{2},0\)
3 \(21.4,\frac{{\pi + 4}}{2}\)
4 \(0,21.4\)
PHXI03:MOTION IN A STRAIGHT LINE

362194 An object is moving in a straight line, according to the curve given in the graph, \({x(m)=t^{2}}\). Find the average velocity for the interval \({t=1 {~s}}\) to \({t=3 {~s}}\).
supporting img

1 \({9 {~m} / {s}}\)
2 \({4 {~m} / {s}}\)
3 \({4.5 {~m} / {s}}\)
4 \({1.5 {~m} / {s}}\)
PHXI03:MOTION IN A STRAIGHT LINE

362195 A particle moves along a straight line and its velocity depends on time as \(v = 4t - {t^2}\). Then for first 5 \(s\) the

1 Average velocity is \(25/3\,m/s\)
2 Average speed is \(10\,m/s\)
3 Average velocity is \(5/3\,m/s\)
4 Average velocity is Zero
PHXI03:MOTION IN A STRAIGHT LINE

362196 The position of an object moving along \({x}\)-axis is given by \({x=a t^{2}+b t+c}\), where \({a, b}\), and \({c}\) are constant and \({t}\) is time in second. Find the average velocity from \({t=0}\) to \({t=2 s}\).

1 \({2 a+b}\)
2 \({2 a+b+\dfrac{c}{2}}\)
3 \({b}\)
4 0
PHXI03:MOTION IN A STRAIGHT LINE

362197 A vehicle travels \(4\;km\) with speed of \(3\;km{\rm{/}}h\) and another \(4\;km\) with speed of \(5\;km{\rm{/}}h\), then its average speed is

1 \(3.75\;km{\rm{/}}h\)
2 \(3.50\;km{\rm{/}}h\)
3 \(4.00\;km{\rm{/}}h\)
4 \(4.25\;km{\rm{/}}h\)
PHXI03:MOTION IN A STRAIGHT LINE

362193 A cyclist starts from the centre \(O\) of a circular park of radius one kilometre, reaches the edge \(P\) of the park, then cycles along the circumference and returns to the centre along QO as shown in the figure. If the round trip takes ten minutes, the net displacement and average speed of the cyclist (in metre and kilometre per hour) is
supporting img

1 \(0,1\)
2 \(\frac{{\pi + 4}}{2},0\)
3 \(21.4,\frac{{\pi + 4}}{2}\)
4 \(0,21.4\)
PHXI03:MOTION IN A STRAIGHT LINE

362194 An object is moving in a straight line, according to the curve given in the graph, \({x(m)=t^{2}}\). Find the average velocity for the interval \({t=1 {~s}}\) to \({t=3 {~s}}\).
supporting img

1 \({9 {~m} / {s}}\)
2 \({4 {~m} / {s}}\)
3 \({4.5 {~m} / {s}}\)
4 \({1.5 {~m} / {s}}\)
PHXI03:MOTION IN A STRAIGHT LINE

362195 A particle moves along a straight line and its velocity depends on time as \(v = 4t - {t^2}\). Then for first 5 \(s\) the

1 Average velocity is \(25/3\,m/s\)
2 Average speed is \(10\,m/s\)
3 Average velocity is \(5/3\,m/s\)
4 Average velocity is Zero
PHXI03:MOTION IN A STRAIGHT LINE

362196 The position of an object moving along \({x}\)-axis is given by \({x=a t^{2}+b t+c}\), where \({a, b}\), and \({c}\) are constant and \({t}\) is time in second. Find the average velocity from \({t=0}\) to \({t=2 s}\).

1 \({2 a+b}\)
2 \({2 a+b+\dfrac{c}{2}}\)
3 \({b}\)
4 0
PHXI03:MOTION IN A STRAIGHT LINE

362197 A vehicle travels \(4\;km\) with speed of \(3\;km{\rm{/}}h\) and another \(4\;km\) with speed of \(5\;km{\rm{/}}h\), then its average speed is

1 \(3.75\;km{\rm{/}}h\)
2 \(3.50\;km{\rm{/}}h\)
3 \(4.00\;km{\rm{/}}h\)
4 \(4.25\;km{\rm{/}}h\)