WB TET · Mathematics and Science (Paper II)
Types of motion, force, friction and Newton's laws (basic).
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Q1 · Motion and Force · EASY
A cricket ball is thrown vertically upward. At the highest point of its motion, what is the velocity of the ball?
Q2 · Motion and Force · MEDIUM
A book is placed on a table. The book does not move. What can be said about the forces acting on the book?
Q3 · Motion and Force · MEDIUM
A bus is moving at a constant speed of 40 km/h on a straight road. Suddenly, the driver applies brakes and the bus comes to rest in 10 seconds. What causes the bus to stop?
Q4 · Motion and Force · HARD
A wooden block of mass 2 kg is placed on a horizontal surface. A horizontal force of 5 N is applied on the block, but it does not move. The force of friction acting on the block is 5 N. Now, if the applied force is increased to 8 N and the block just starts to move, what is the maximum static friction force?
Q5 · Motion and Force · MEDIUM
A car moving at 20 m/s uniformly accelerates to 30 m/s in 5 seconds. What is the acceleration of the car?