Question

102
MCQ with one or more corred answers
1. The external forces acting on a vehicle of mass M moving at a speed v'making a trun on the
circular path of radius ris/ are
a) Weight Mg b ) Normal force c) Friction - d) All the above
..​

Answer 1

All the external forces that are acting upon a vehicle that is making a turn on the circular path is :

d) All the above

• Since the weight of the body is ‘m’, thus mg will act on the body.

• A normal force will also act on the body.

• Along with these two forces, the frictional force will also act on the body.

Answer 2

The external forces acting on a vehicle of mass M moving at a speed v'making a turn on the  circular path of radius r is/are d) All the above.

Explanation:

• When a vehicle is at rest or in motion, the weight always acts of the body due to gravitational force. The force acting on the vehicle is weight of the vehicle.

Weight of the vehicle = Mass of the vehicle × Acceleration due to gravity

• When a vehicle is in contact with the surface, there is a contact force acting on the vehicle which is called as normal force.

Normal force = Force perpendicular to the surface = N

• When a vehicle moves, there is always friction between the tires of the vehicle and surface.