Kinematic Equations
PHXI03:MOTION IN A STRAIGHT LINE

362319 A metro train starts from rest and in \(5 s\) achieves \(180\,km{h^{ - 1}}\) After that it moves with constant velocity and comes to rest after travelling \(45\;m\) with uniform retardation. If total distance travelled is \(395\;m,\) find total time of travelling.

1 \(12.2\;s\)
2 \(15.3\;s\)
3 \(9s\)
4 \(17.2\;s\)
PHXI03:MOTION IN A STRAIGHT LINE

362320 A truck is moving at a speed of \({72 {kmh}^{-1}}\) on a straight road. The driver can produce deceleration of \({2 {~ms}^{-2}}\) by applying brakes. The stopping distance of truck is \({13 x {~m}}\), if the reaction time of the driver is 0.2 s . The value of \({x}\) is

1 5
2 10
3 8
4 2
PHXI03:MOTION IN A STRAIGHT LINE

362321 Assertion :
The displacement -time graph of a body moving with uniform acceleration is a straight line.
Reason :
The displacement is proportional to time for uniform motion.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI03:MOTION IN A STRAIGHT LINE

362322 A car, starting from rest, accelerates at the rate \(f\) through a distance \(S\), then continues at constant speed for time \(t\) and then decelerates at the rates \(\frac{f}{2}\) to come to rest. If the total distance travelled is 15 \(S\), then

1 \(S = \frac{1}{6}f{t^2}\)
2 \(S = \frac{1}{{72}}f{t^2}\)
3 \(S = \frac{1}{2}f{t^2}\)
4 \(S = \frac{1}{4}f{t^2}\)
PHXI03:MOTION IN A STRAIGHT LINE

362319 A metro train starts from rest and in \(5 s\) achieves \(180\,km{h^{ - 1}}\) After that it moves with constant velocity and comes to rest after travelling \(45\;m\) with uniform retardation. If total distance travelled is \(395\;m,\) find total time of travelling.

1 \(12.2\;s\)
2 \(15.3\;s\)
3 \(9s\)
4 \(17.2\;s\)
PHXI03:MOTION IN A STRAIGHT LINE

362320 A truck is moving at a speed of \({72 {kmh}^{-1}}\) on a straight road. The driver can produce deceleration of \({2 {~ms}^{-2}}\) by applying brakes. The stopping distance of truck is \({13 x {~m}}\), if the reaction time of the driver is 0.2 s . The value of \({x}\) is

1 5
2 10
3 8
4 2
PHXI03:MOTION IN A STRAIGHT LINE

362321 Assertion :
The displacement -time graph of a body moving with uniform acceleration is a straight line.
Reason :
The displacement is proportional to time for uniform motion.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI03:MOTION IN A STRAIGHT LINE

362322 A car, starting from rest, accelerates at the rate \(f\) through a distance \(S\), then continues at constant speed for time \(t\) and then decelerates at the rates \(\frac{f}{2}\) to come to rest. If the total distance travelled is 15 \(S\), then

1 \(S = \frac{1}{6}f{t^2}\)
2 \(S = \frac{1}{{72}}f{t^2}\)
3 \(S = \frac{1}{2}f{t^2}\)
4 \(S = \frac{1}{4}f{t^2}\)
PHXI03:MOTION IN A STRAIGHT LINE

362319 A metro train starts from rest and in \(5 s\) achieves \(180\,km{h^{ - 1}}\) After that it moves with constant velocity and comes to rest after travelling \(45\;m\) with uniform retardation. If total distance travelled is \(395\;m,\) find total time of travelling.

1 \(12.2\;s\)
2 \(15.3\;s\)
3 \(9s\)
4 \(17.2\;s\)
PHXI03:MOTION IN A STRAIGHT LINE

362320 A truck is moving at a speed of \({72 {kmh}^{-1}}\) on a straight road. The driver can produce deceleration of \({2 {~ms}^{-2}}\) by applying brakes. The stopping distance of truck is \({13 x {~m}}\), if the reaction time of the driver is 0.2 s . The value of \({x}\) is

1 5
2 10
3 8
4 2
PHXI03:MOTION IN A STRAIGHT LINE

362321 Assertion :
The displacement -time graph of a body moving with uniform acceleration is a straight line.
Reason :
The displacement is proportional to time for uniform motion.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI03:MOTION IN A STRAIGHT LINE

362322 A car, starting from rest, accelerates at the rate \(f\) through a distance \(S\), then continues at constant speed for time \(t\) and then decelerates at the rates \(\frac{f}{2}\) to come to rest. If the total distance travelled is 15 \(S\), then

1 \(S = \frac{1}{6}f{t^2}\)
2 \(S = \frac{1}{{72}}f{t^2}\)
3 \(S = \frac{1}{2}f{t^2}\)
4 \(S = \frac{1}{4}f{t^2}\)
PHXI03:MOTION IN A STRAIGHT LINE

362319 A metro train starts from rest and in \(5 s\) achieves \(180\,km{h^{ - 1}}\) After that it moves with constant velocity and comes to rest after travelling \(45\;m\) with uniform retardation. If total distance travelled is \(395\;m,\) find total time of travelling.

1 \(12.2\;s\)
2 \(15.3\;s\)
3 \(9s\)
4 \(17.2\;s\)
PHXI03:MOTION IN A STRAIGHT LINE

362320 A truck is moving at a speed of \({72 {kmh}^{-1}}\) on a straight road. The driver can produce deceleration of \({2 {~ms}^{-2}}\) by applying brakes. The stopping distance of truck is \({13 x {~m}}\), if the reaction time of the driver is 0.2 s . The value of \({x}\) is

1 5
2 10
3 8
4 2
PHXI03:MOTION IN A STRAIGHT LINE

362321 Assertion :
The displacement -time graph of a body moving with uniform acceleration is a straight line.
Reason :
The displacement is proportional to time for uniform motion.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI03:MOTION IN A STRAIGHT LINE

362322 A car, starting from rest, accelerates at the rate \(f\) through a distance \(S\), then continues at constant speed for time \(t\) and then decelerates at the rates \(\frac{f}{2}\) to come to rest. If the total distance travelled is 15 \(S\), then

1 \(S = \frac{1}{6}f{t^2}\)
2 \(S = \frac{1}{{72}}f{t^2}\)
3 \(S = \frac{1}{2}f{t^2}\)
4 \(S = \frac{1}{4}f{t^2}\)