The speed of a bullet can be determined by using a device called a ballistic pendulum. The device is essentially a block of wood that hangs from two strings. When a bullet is fired at the block and it embeds itself and causes the combined block/bullet system to swing up to some height, h The mass of the block is 2.2 kg.

The bullet has a speed 530 m/s and a mass of 6.5 g.

Find the speed of the block/bullet system after collision.

The next element is345640

W= fd
where f is an applied force and d is the distance over which it is applied. when a parachuting skydiver is at constant velocity, he is experiencing "terminal velocity", the point at which his acceleration down is canceled out by air resistance. that means that the resisting force of the air is equal to his weight, but in the opposite direction. with this, we can solve for the work done by the force.
w = fd
w = (92.0)(9.81 m/s^2) (325)
w= 2.93 x 10^5 j
the value for work in this case is positive because it is pushing up on the skydiver, who has a downward force of gravity.
therefore the answer is 2.93 x 10^5 j

Answerit increases at a steady rate;