Describe the effect on passenger when a moving bus suddenly changes its direction of motion.

How can we change the speed and the direction of a moving body?

Find expression for Doppler effect in case of a moving source when the observer is at rest and there is no wind.

Two equal masses, one at rest and another moving undergo elastic QB lique collision. If one mass goes at an angle pi/3 .with its original direction of motion, what is the direction of motion of the other?

A constant force acting on a body of mass 3.0 kg changes its speed from 2.0 m s^-1 to 3.5 m s^-1 in 25 s. The direction of the motion of the body remains unchanged. What is the magnitude and direction of the force?

When is a collision said to be a perfectly inelastic? A mass is moving with speed v collides inelastically with another identical mass at rest. After collision, the first mass moves with velocity frac(nu)(sqrt 3) in a direction perpendicular to the initial direction of motion. Find the speed of the second mass after collision.

Write an expression for the work done when a force is action on an object in the direction of its displacement?