Table-tennis ball has a mass 10 g and a speed of 90 m/s. If speed can be measured within an acuracy of 4%. What will be theuncertainity in speed and position?

A car travelling at a speed of 20 ms^-1 applies brackes and stops within 10s. What is the acceleration of car?

A player throws a ball upwards with an initial speed of 29.4 m s^-1 :- What are the velocity and acceleration of the ball at the highest point of its motion ?

A car travelling with a speed of 2ms^-1 increases its speed to 10ms^-1 in a time interval of 4s. What is the acceleration of car?

A cricket catches a ball of mass 150 g in 0.1 s moving with a speed of 20 ms^-1 . Then the experiences a foce of

A 5 kg ball is trhown up with a speed of 10 m/s. Find its potential energy when it reaches the highest point.

A car travelling at a speed of 10m/s stops in 4s after the application of brakes. If we assume the retardation to be constant. Find the retardation.

A 5 kg ball is trhown up with a speed of 10 m/s. Find its kinetic energy at the time of throw.

A river is flowing due east with a speed 3m/s. Swimmer can swim in still water at a speed of 4 m//s (shown in the figure) If swimmer starts swimming due north, what wil be his resultant velocity (magnitude and direction).

A woman throws an object of mass 500 g with a speed of 25 ms^-1 . What is the impulse imparted to the object?

A woman throws an object of mass 500 g with a speed of 25 ms^-1 . If the object hits a wall and rebounds with half the original speed, what is the change in momentum of the object?