Dynamics of Uniform Circular Motion (Centripetal Force and its Applications: Vehicle on a Level Circular Road, Vehicle on a Banked Road) NEET Questions

Dynamics of Uniform Circular Motion (Centripetal Force and its Applications: Vehicle on a Level Circular Road, Vehicle on a Banked Road) MCQ Questions

1.
A body moving in a circular path with uniform speed has:
A.
Constant velocity
B.
Constant acceleration
C.
Constant kinetic energy
D.
Zero acceleration
ANSWER :
C. Constant kinetic energy
2.
The acceleration of a body moving in a circular path is directed:
A.
Tangentially
B.
Radially outward
C.
Radially inward
D.
Along the motion
ANSWER :
C. Radially inward
3.
Centripetal force is required to:
A.
Increase speed of a body
B.
Keep a body moving in a circular path
C.
Move a body in a straight line
D.
Stop a body
ANSWER :
B. Keep a body moving in a circular path
4.
Which of the following forces can provide centripetal force?
A.
Gravitational force
B.
Tension force
C.
Friction
D.
All of these
ANSWER :
D. All of these
5.
On a level circular road, a car of mass 1500 kg is moving with a speed of 25 m/s. If the radius of the curve is 50 m, what is the minimum coefficient of static friction required to prevent skidding? (Assume g = 10 m/s²)

NEET - 2018

A.
0.1
B.
0.2
C.
0.3
D.
0.4
ANSWER :
C. 0.3
6.
A vehicle moving on a level circular road is held in motion by:
A.
Normal force
B.
Tension
C.
Friction
D.
Gravity
ANSWER :
C. Friction