Newton's Laws Of Motion Mock Tests

Two blocks of masses 4 kg and 6 kg are connected by a light inextensible string passing over a frictionless pulley. The system is released from rest. The acceleration of the system is: (g = 10 m/s²)

A cricket ball of mass 0.15 kg is moving with a velocity of 20 m/s. A player stops it in 0.05 s. The impulse imparted to the ball and the average force exerted by the player on the ball are respectively:

Two blocks of masses 5 kg and 3 kg are connected by a light string passing over a frictionless pulley. The system is released from rest. The acceleration of the system is: (Take g = 10 m/s²)

Two blocks of masses 4 kg and 6 kg are connected by a light string and placed on a smooth horizontal surface. A horizontal force of 30 N is applied to the 6 kg block. The tension in the string is:

Two masses m₁ = 4 kg and m₂ = 6 kg are connected by a light inextensible string passing over a frictionless pulley. The system is released from rest. What is the tension in the string? (Take g = 10 m/s²)

A block of mass 5 kg rests on a rough inclined plane at an angle of 30° to the horizontal. The minimum force parallel to the plane required to just start moving the block up the plane is: (μ = 0.4, g = 10 m/s², sin 30° = 0.5, cos 30° = 0.866)

A force of 10 N acts on a body of mass 2 kg for 3 seconds. The body is initially at rest. The change in kinetic energy of the body is:

Two masses m₁ = 5 kg and m₂ = 3 kg are connected by a light inextensible string passing over a frictionless pulley (Atwood machine). The system is released from rest. The tension in the string is: (g = 10 m/s²)