Force And Laws Of Motion

Friction can be reduced by changing from

A car travelling at a speed of 30 km/h is brought to halt in 8m by applying brakes. If the same car is traveling at 60 km/h, in how many meters can it be brought to halt with the same braking? (Provide answer in m)

The child has to choose which of the following horses A, B, C or D if he has to experience faster revolution

The concept of displacement current was introduced by___.

A body of mass 1 kg moving on a horizontal surface with an initial velocity of 8 m/s comes to rest after 10 seconds. If one wants to keep the body moving on the same surface with the same velocity of 8 m/s, then what is the force required? (Answer required in N)

A Girl Starts her Motion in a straight line at a Velocity of 60 m/s, her Velocity is Changing at a Constant Rate. If She Stops after 60 s, what is her Acceleration?

Which of the men from X, Y, Z will fall faster to the ground when they are jumping from an airplane, ignoring the air resistance.