A 55 kg hunter, standing on frictionless ice, shoots a 42 g bullet at a speed of 620 m/s. What is the recoil speed of the hunter?

A 15 g bullet is fired at 610 m/s into a 4.0 kg block that sits at the edge of a 75-cm-high table. The bullet embeds itself in the block and carries it off the table. How far from the point directly below the table’s edge does the block land?

An elastic collision takes place between a 0.050-kg toy car moving at 10 × 10² m/h and a 0.014-kg toy car moving at 20 × 109 mm/yr.  What is the kinetic energy of the system? Express your answer with the appropriate units.

PW-3 An elevator motor is capable of lifting a 2,500kg elevator 50.0m with a constant speed in 12.0 seconds. a) Apply Fet ma to find the force needed to lift the elevator. b) Find the power of the elevator motor in watts and in horsepower. (1H.P.-750W) c) If the power of the elevator motor is 200H.P., find the constant speed at which the 2,500kg elevator can be raised. d) If the power of the elevator motor is 200H.P., find the constant speed at which the elevator can be raised if the elevator and its contents have a mass of 4,000kg

A rifle with a weight of 40 N fires a 4.5 g bullet with a speed of 290 m/s. (a) Find the recoil speed of the rifle. m/s(b) If a 725 N man holds the rifle firmly against his shoulder, find the recoil speed of the man and rifle. m/s

A 5.00 g bullet has a muzzle velocity of 250 m/s when fired by a rifle with a weight of 25.0 N. (a) Determine the recoil speed (in m/s) of the rifle. m/s (b) If a marksman with a weight of 725 N holds the rifle firmly against his shoulder, determine the recoil speed (in m/s) of the shooter and rifle. m/s

A 10 kg cannonball is fired horizontally to the left out of a 1700 kg cannon. The cannonball leaves the muzzle at −600x^ms−600x^ms. The recoil velocity of the cannon  is Answer

A block with mass M = 5.60 kg is sliding in the positive x-direction at Vi = 8.00 m/s on a frictionless surface when it collides elastically in one dimension with a stationary block with mass m = 1.30 kg. Determine the velocities, Vf and vf, of the objects after the collision. Vf = ? vf = ?

Two gliders with mA = 0.50 kg, mB = 0.40 kg, collide elastically on a frictionless surface. Glider A with a spring bumper initially moves to the right with the speed of 4.0 m/s and glider B with a spring bumper initially moves to the left with the speed of 7.0 m/s. What is the final velocity of the glider A after collision?

A stationary firecracker explodes into two pieces. The piece shot to the right has a mass of 0.07 kg and is traveling 45 m/s. How fast is the smaller 0.04 kg piece, which travels to the left? Ignore friction and air resistance.