269712
A car moving on a straight road accelerates from a speed of\(4.1 \mathrm{~m} / \mathrm{s}\) to a speed of \(6.9 \mathrm{~m} / \mathrm{s}\) in \(5.0 \mathrm{~s}\). Then its average acceleration is
1 \(0.5 \mathrm{~m} / \mathrm{s}^{2}\)
2 \(0.6 \mathrm{~m} / \mathrm{s}^{2}\)
3 \(0.56 \mathrm{~m} / \mathrm{s}^{2}\)
4 \(0.65 \mathrm{~m} / \mathrm{s}^{2}\)
Explanation:
\(a=\frac{v-u}{t}\)
MOTION IN A STRIGHT LINE
269723
A body is moving with velocity\(30 \mathrm{~ms}^{-1}\) towards east. After 10s its velocity becomes \(40 \mathrm{~ms}^{-1}\) towards north. The average acceleration of the body is [AIPM T 2011]
269724
A body starting with a velocity ' \(v\) ' returns to its initial position after ' \(t\) ' second with the same speed, along the same line. Acceleration of the particle is
1 \(\frac{-2 v}{t}\)
2 zero
3 \(\frac{v}{2 t}\)
4 \(\frac{t}{2 v}\)
Explanation:
\(a=\frac{v-u}{t} ;
MOTION IN A STRIGHT LINE
269725
A body starting from rest moving with uniform acceleration has a displacement of\(16 \mathrm{~m}\) in first \(4 \mathrm{~s}\) and \(9 \mathrm{~m}\) in first \(3 \mathrm{~s}\). The acceleration of the body is
1 \(1 \mathrm{~ms}^{2}\)
2 \(2 \mathrm{~ms}^{2}\)
3 \(3 \mathrm{~ms}^{2}\)
4 \(4 \mathrm{~ms}^{2}\)
Explanation:
s_{n}=a\left(n-\frac{1}{2}\right) ; s=\frac{1}{2} a n^{2}\)
MOTION IN A STRIGHT LINE
269726
A body starts from rest and moves withan uniform acceleration. The ratio of distance covered in the \(\mathrm{n}^{\text {th }}\) second to the distance covered in ' \(n\) ' second is
269712
A car moving on a straight road accelerates from a speed of\(4.1 \mathrm{~m} / \mathrm{s}\) to a speed of \(6.9 \mathrm{~m} / \mathrm{s}\) in \(5.0 \mathrm{~s}\). Then its average acceleration is
1 \(0.5 \mathrm{~m} / \mathrm{s}^{2}\)
2 \(0.6 \mathrm{~m} / \mathrm{s}^{2}\)
3 \(0.56 \mathrm{~m} / \mathrm{s}^{2}\)
4 \(0.65 \mathrm{~m} / \mathrm{s}^{2}\)
Explanation:
\(a=\frac{v-u}{t}\)
MOTION IN A STRIGHT LINE
269723
A body is moving with velocity\(30 \mathrm{~ms}^{-1}\) towards east. After 10s its velocity becomes \(40 \mathrm{~ms}^{-1}\) towards north. The average acceleration of the body is [AIPM T 2011]
269724
A body starting with a velocity ' \(v\) ' returns to its initial position after ' \(t\) ' second with the same speed, along the same line. Acceleration of the particle is
1 \(\frac{-2 v}{t}\)
2 zero
3 \(\frac{v}{2 t}\)
4 \(\frac{t}{2 v}\)
Explanation:
\(a=\frac{v-u}{t} ;
MOTION IN A STRIGHT LINE
269725
A body starting from rest moving with uniform acceleration has a displacement of\(16 \mathrm{~m}\) in first \(4 \mathrm{~s}\) and \(9 \mathrm{~m}\) in first \(3 \mathrm{~s}\). The acceleration of the body is
1 \(1 \mathrm{~ms}^{2}\)
2 \(2 \mathrm{~ms}^{2}\)
3 \(3 \mathrm{~ms}^{2}\)
4 \(4 \mathrm{~ms}^{2}\)
Explanation:
s_{n}=a\left(n-\frac{1}{2}\right) ; s=\frac{1}{2} a n^{2}\)
MOTION IN A STRIGHT LINE
269726
A body starts from rest and moves withan uniform acceleration. The ratio of distance covered in the \(\mathrm{n}^{\text {th }}\) second to the distance covered in ' \(n\) ' second is
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MOTION IN A STRIGHT LINE
269712
A car moving on a straight road accelerates from a speed of\(4.1 \mathrm{~m} / \mathrm{s}\) to a speed of \(6.9 \mathrm{~m} / \mathrm{s}\) in \(5.0 \mathrm{~s}\). Then its average acceleration is
1 \(0.5 \mathrm{~m} / \mathrm{s}^{2}\)
2 \(0.6 \mathrm{~m} / \mathrm{s}^{2}\)
3 \(0.56 \mathrm{~m} / \mathrm{s}^{2}\)
4 \(0.65 \mathrm{~m} / \mathrm{s}^{2}\)
Explanation:
\(a=\frac{v-u}{t}\)
MOTION IN A STRIGHT LINE
269723
A body is moving with velocity\(30 \mathrm{~ms}^{-1}\) towards east. After 10s its velocity becomes \(40 \mathrm{~ms}^{-1}\) towards north. The average acceleration of the body is [AIPM T 2011]
269724
A body starting with a velocity ' \(v\) ' returns to its initial position after ' \(t\) ' second with the same speed, along the same line. Acceleration of the particle is
1 \(\frac{-2 v}{t}\)
2 zero
3 \(\frac{v}{2 t}\)
4 \(\frac{t}{2 v}\)
Explanation:
\(a=\frac{v-u}{t} ;
MOTION IN A STRIGHT LINE
269725
A body starting from rest moving with uniform acceleration has a displacement of\(16 \mathrm{~m}\) in first \(4 \mathrm{~s}\) and \(9 \mathrm{~m}\) in first \(3 \mathrm{~s}\). The acceleration of the body is
1 \(1 \mathrm{~ms}^{2}\)
2 \(2 \mathrm{~ms}^{2}\)
3 \(3 \mathrm{~ms}^{2}\)
4 \(4 \mathrm{~ms}^{2}\)
Explanation:
s_{n}=a\left(n-\frac{1}{2}\right) ; s=\frac{1}{2} a n^{2}\)
MOTION IN A STRIGHT LINE
269726
A body starts from rest and moves withan uniform acceleration. The ratio of distance covered in the \(\mathrm{n}^{\text {th }}\) second to the distance covered in ' \(n\) ' second is
269712
A car moving on a straight road accelerates from a speed of\(4.1 \mathrm{~m} / \mathrm{s}\) to a speed of \(6.9 \mathrm{~m} / \mathrm{s}\) in \(5.0 \mathrm{~s}\). Then its average acceleration is
1 \(0.5 \mathrm{~m} / \mathrm{s}^{2}\)
2 \(0.6 \mathrm{~m} / \mathrm{s}^{2}\)
3 \(0.56 \mathrm{~m} / \mathrm{s}^{2}\)
4 \(0.65 \mathrm{~m} / \mathrm{s}^{2}\)
Explanation:
\(a=\frac{v-u}{t}\)
MOTION IN A STRIGHT LINE
269723
A body is moving with velocity\(30 \mathrm{~ms}^{-1}\) towards east. After 10s its velocity becomes \(40 \mathrm{~ms}^{-1}\) towards north. The average acceleration of the body is [AIPM T 2011]
269724
A body starting with a velocity ' \(v\) ' returns to its initial position after ' \(t\) ' second with the same speed, along the same line. Acceleration of the particle is
1 \(\frac{-2 v}{t}\)
2 zero
3 \(\frac{v}{2 t}\)
4 \(\frac{t}{2 v}\)
Explanation:
\(a=\frac{v-u}{t} ;
MOTION IN A STRIGHT LINE
269725
A body starting from rest moving with uniform acceleration has a displacement of\(16 \mathrm{~m}\) in first \(4 \mathrm{~s}\) and \(9 \mathrm{~m}\) in first \(3 \mathrm{~s}\). The acceleration of the body is
1 \(1 \mathrm{~ms}^{2}\)
2 \(2 \mathrm{~ms}^{2}\)
3 \(3 \mathrm{~ms}^{2}\)
4 \(4 \mathrm{~ms}^{2}\)
Explanation:
s_{n}=a\left(n-\frac{1}{2}\right) ; s=\frac{1}{2} a n^{2}\)
MOTION IN A STRIGHT LINE
269726
A body starts from rest and moves withan uniform acceleration. The ratio of distance covered in the \(\mathrm{n}^{\text {th }}\) second to the distance covered in ' \(n\) ' second is
269712
A car moving on a straight road accelerates from a speed of\(4.1 \mathrm{~m} / \mathrm{s}\) to a speed of \(6.9 \mathrm{~m} / \mathrm{s}\) in \(5.0 \mathrm{~s}\). Then its average acceleration is
1 \(0.5 \mathrm{~m} / \mathrm{s}^{2}\)
2 \(0.6 \mathrm{~m} / \mathrm{s}^{2}\)
3 \(0.56 \mathrm{~m} / \mathrm{s}^{2}\)
4 \(0.65 \mathrm{~m} / \mathrm{s}^{2}\)
Explanation:
\(a=\frac{v-u}{t}\)
MOTION IN A STRIGHT LINE
269723
A body is moving with velocity\(30 \mathrm{~ms}^{-1}\) towards east. After 10s its velocity becomes \(40 \mathrm{~ms}^{-1}\) towards north. The average acceleration of the body is [AIPM T 2011]
269724
A body starting with a velocity ' \(v\) ' returns to its initial position after ' \(t\) ' second with the same speed, along the same line. Acceleration of the particle is
1 \(\frac{-2 v}{t}\)
2 zero
3 \(\frac{v}{2 t}\)
4 \(\frac{t}{2 v}\)
Explanation:
\(a=\frac{v-u}{t} ;
MOTION IN A STRIGHT LINE
269725
A body starting from rest moving with uniform acceleration has a displacement of\(16 \mathrm{~m}\) in first \(4 \mathrm{~s}\) and \(9 \mathrm{~m}\) in first \(3 \mathrm{~s}\). The acceleration of the body is
1 \(1 \mathrm{~ms}^{2}\)
2 \(2 \mathrm{~ms}^{2}\)
3 \(3 \mathrm{~ms}^{2}\)
4 \(4 \mathrm{~ms}^{2}\)
Explanation:
s_{n}=a\left(n-\frac{1}{2}\right) ; s=\frac{1}{2} a n^{2}\)
MOTION IN A STRIGHT LINE
269726
A body starts from rest and moves withan uniform acceleration. The ratio of distance covered in the \(\mathrm{n}^{\text {th }}\) second to the distance covered in ' \(n\) ' second is