Practice test -2

A train starting from rest moves with uniform acceleration of 5m/s² . Find its velocity when it has travelled a distance of 1km.

• 200 m/s
• 100 m/s
• 10 m/s
• 50 m/s

A car travels a distance of 360km in 5 hours. What is the speed in m/s?

Which physical quantity is given by the area under the velocity-time graph?

An electric train is moving with a velocity of 30m/s. How much distance will it travel in 30s?

During an experiment, a signal from a spaceship reached the ground station in five minutes. What was the distance of spaceship from the ground station? The signal travels at the speed of light ,3 x 10⁸ m/s.

Impulse = _______ x time

A truck starts from rest and rolls on down a hill with a constant acceleration. it travels a distance of 400m in 20s. Find its acceleration. Find the force acting on it if its mass is 7 tones.

[Hint :- 1 tone = 1000kg]

An automobile vehicle has a mass of 1500kg. What must be the force between the vehicle and road if the vehicle is to be stopped with a negative acceleration of 1.7m/s² ?

Rocket works on the principle of conservation of

• momentum
• force
• energy
• mass

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