Physics
Force and Motion
Page 7 of 11
#49 When car takes turn around a curve road, the passengers feel a force acting on them in a direction away from the center of the curve. It is due to
A) Centripetal force
B) Gravitational force
C) Their inertia
D) Centrifugal force
#50 Which of the following is not an example of projectile motion
A) A gas filled balloon
B) Bullet fired from gun
C) A football kicked
D) A baseball shot
#51 for which the range and maximum height become equal?
A) \(\tan^{-1} \frac{1}{4}\)
B) \(\tan^{-1} 4\)
C) \(\tan^{-1} \frac{1}{2}\)
D) \(\tan^{-1} 2\)
#52 Time rate of change of momentum is equal to
A) Force
B) Impulse
C) Velocity
D) Both A and C
#53 The angle of projection, at which the range of projectile would become half of its maximum value.
A) 45°
B) 30°
C) 15°
D) 60°
#54 Swimming is possible on account of
A) 1st law of motion
B) 2nd law of motion
C) 3rd law of motion
D) Newton’s law of Gravitation
#55 If the momentum of a body changes from 100 N·s to 200 N·s in 10 s then the unbalanced external force responsible to change the momentum is
A) 5 N
B) 2.5 N
C) 2 N
D) 10 N
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