Force Test - 6...

In which of the following cases are the forces acting on the body balanced?

Two forces of 9 N and 6 N act on a body in downward direction, while another force of 15 N acts on the body in upward direction. What is the resultant of the forces?

Two children try to push a box on a rough floor. The sum of the forces applied by both of them is 7 N and the force of friction is 3N. Based on that, which of the following statements is correct?

A body of mass 200 g is resting on a frictionless table. What is the acceleration of the body, when it is acted upon by a force of 0.05 N?

A ball of mass 20 g is initially moving with a velocity of 25 ms^-1. On applying a constant force on the ball for 2 s, it acquires a velocity of 65 ms^-1. What is the magnitude of the force applied?

On applying a force of 2 N on masses m₁ and m_2, it produces acceleration of 5 ms^-2 and 10 ms^-2, respectively. Calculate the acceleration, when both the masses are tied together.

A force F₁ is required for accelerating a 3 kg mass accelerating at the rate of ms^-2 and a force F₂ for a 6 kg mass at the rate of 2 ms^-2.
Choose the correct option.

A force `F` is required to accelerate a body of mass `m` at 10 ms^-2. What is the force required to accelerate a body of mass `2m` at the rate of 20 ms^-2?

When a bus suddenly starts, a person standing in it will

In the case of motors and lorries moving along a bend, the centripetal force is provided by

A body of mass 2 kg is sliding with a constant velocity of 4 m/s on a frictionless horizontal table. The force required to keep the body moving with the same velocity is

In a game of snooker, two balls each of mass 200 g are moving in the same straight line but in the opposite directions with a velocity of 2 ms^-1 each. The balls then collide and stick together.
What is the velocity of combined balls after the collision?

A ball of mass 2 kg bounces with a horizontal velocity of 2 ms^-1 in a stationary box with frictionless wheels. The mass of the box is 6 kg. What will be the velocity of the ball as the box starts moving?

A body of weight w₁ is suspended from the ceiling of a room using a chain of weight w₂. What is the force with which the ceiling pulls the chain?

Two blocks of masses 6 kg and 8 kg respectively, connected by a rope of mass 4 kg are resting on a frictionless floor as shown in the figure. If a constant force of 90N is applied to the block of mass 8 kg, what is the acceleration of the system and tension in the rope at mid point A?

Two blocks of an identical material are connected by a light rope on a level surface as shown in the figure. An applied force of 65 N (right) produces acceleration in the blocks. While in motion, the magnitude of the force of friction on the blocks is 55N. What is acceleration of the blocks?

Three boxes A, B and C are positioned next to each other on a horizontal frictionless surface as shown in the figure. An applied force acting on box A causes all the boxes to accelerate at 2 ms^-2. What is the force exerted by box C on box B?

Two blocks X and Y of masses 10 kg and 5 kg respectively, are attached to each other by a light rope and can slide along a horizontal frictionless surface. An applied force of 36 N (right) acts on block X. What action-reaction forces do the blocks exert on each other?

A scooter generally slips on an oily road because

Work done by a body against friction 1 always results in a loss of its