Speed

A 3gm bullet with a speed of 300m/sec is fired on a 400gm block initially at rest. The bullet passes through the block and as a result the block begins to move with a speed of 1.5m/sec in the original direction of the bullet. Find the speed of the bullet after it has passed through the block.

Momentum and magnitude

A constant force acts on a 2kg mass for 3sec while the velocity changes from 4m/sec to 10m/sec. a. Find the initial and final momentum of the mass. b. Find the change in momentum and the impulse given to the mass. c. Find the magnitude of the force.

Recoil

A bullet of mass 5X10^-3kg is fired from a 4kg gun with a speed of 320m/sec. With what speed does the gun recoil?

Momentum equation

A 3gm bullet with a speed of 300m/sec is fired on a 400gm block initially at rest. The bullet passes through the block and as a result the block begins to move with a speed of 1.5m/sec in the original direction of the bullet. Find the speed of the bullet after it has passed through the block.

Distance traveled by a wave

A wave having frequency 20Hz and wavelength 5m is traveling away from its source. What is the distance traveled by this wave in 15sec?