NEET Physics MCQ: NCERT Motion & Acceleration

🎓 Ncert Level:Understanding

🎯Difficulty :Hard

⚡ Time Required :1 mins

🔄Ncert Concepts :Projectile Motion, Gravity, Acceleration

Related Questions

A bullet emerges from a barrel of length 1.2 m with a speed of $640\,\,m{s^{ - 1}}$ . Assuming constant acceleration the approximate time that its spends in the barrel after the gun is fired is

4 ms

3.75 ms

3 ms

4.25 ms

Question Tags

⚡ Time Required :2 mins

🔄Ncert Concepts :kinematics, constant acceleration, average velocity

A car is travelling at $72{\rm{\;km}}{{\rm{h}}^{ - 1}}$ and is 20 m from a barrier when the driver puts on the brakes. The car hits the barrier 2s later. What is the magnitude of the constant deceleration?

$7.2\;{\rm{m}}{{\rm{s}}^{ - 2}}$

$10\;{\rm{m}}{{\rm{s}}^{ - 2}}$

$36\;{\rm{m}}{{\rm{s}}^{ - 2}}$

$15\;{\rm{m}}{{\rm{s}}^{ - 2}}$

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🔄Ncert Concepts :kinematics, constant acceleration, unit conversion

A proton in a cyclotron changes its velocity from $30{\rm{km}}{{\rm{s}}^{ - 1}}$ north to $40{\rm{km}}{{\rm{s}}^{ - 1}}$ east in 20 s. what is the average acceleration during this time

$2.5\,{\rm{km}}{{\rm{s}}^{ - 2}}\,at\,{37^0}\,E\,of\,S$

$2.5\,{\rm{km}}{{\rm{s}}^{ - 2}}\,at\,{37^0}\,N\,of\,E$

$2.5\,{\rm{km}}{{\rm{s}}^{ - 2}}\,at\,{37^0}\,N\,of\,S$

$2.5\,{\rm{km}}{{\rm{s}}^{ - 2}}\,at\,{37^0}\,E\,of\,N$

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🔄Ncert Concepts :vector subtraction, average acceleration, trigonometry

The velocity ‘V’ of a moving object varies with displacement ‘x’ as $v = 3{x^2} - 2x$ , then the value of acceleration at x = 2 m is

$48\,\,m{s^{ - 2}}$

$80\,\,m{s^{ - 2}}$

$18\,\,m{s^{ - 2}}$

$10\,\,m{s^{ - 2}}$

Question Tags

🔄Ncert Concepts :kinematics, differentiation, acceleration

An object moving with a velocity of 20 m/s comes to rest in 4 seconds. What is its acceleration?

5 m/s²

-5 m/s²

10 m/s²

-10 m/s²

Question Tags

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :Acceleration, Deceleration, Velocity

A man is 45 m behind the bus, when the bus starts accelerating from rest with acceleration $2.5\;{\rm{m}}{{\rm{s}}^{ - 2}}.$ . With what minimum velocity should the man start running to catch the bus?

$12\;{\rm{m}}{{\rm{s}}^{ - 1}}$

$14\;{\rm{m}}{{\rm{s}}^{ - 1}}$

$15\;{\rm{m}}{{\rm{s}}^{ - 1}}$

$16\;{\rm{m}}{{\rm{s}}^{ - 1}}$

Question Tags

🔄Ncert Concepts :kinematics, uniform acceleration, relative motion

A car starts from rest and moves with uniform acceleration a on a straight road from time t=0 to t=T. After that, a constant deceleration brings it to rest. In this process the average speed of the car is

$\frac{{aT}}{4}$

$\frac{{3aT}}{2}$

$\frac{{aT}}{2}$

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🔄Ncert Concepts :kinematics, uniform acceleration, average speed, displacement

When two particles A and B are at point O,A is moving with constant velocity of 50 m/s while B is not moving. But B possesses a constant acceleration of $10\,\,m/{s^{ - 2}}$ . After how much time they will be at a distance of 125 m moving along same straight line, from each other?

3 s

5 s

6 s

2 s

Question Tags

🎯Difficulty :Hard

🔄Ncert Concepts :kinematics, constant velocity, constant acceleration, relative motion

If the velocity of a particle is $\left( {10 + 2{t^2}} \right)m/s$ , then the average acceleration of the particle between 2s and 5s is

$2m/{s^2}$

$4m/{s^2}$

$12m/{s^2}$

$14m/{s^2}$

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