An ambulence is parked in the parking lot of wake forest hospital. Mass of the ambulence  is 2200kg. Kinetic energy of ambulence is calculated to be   A. 2256 J   B. 2200 J   C. More information needed to calculate kinetic energy of ambulence.   D. 0 J

A 5.00 gram bullet moving horizontally with a speed of 400 m/s collides with a wooden block. After moving 2.00 cm into the block the bullet stops moving. Was work done on the bullet? If so describe the type of work and the force that did the work.     a. yes, negative work, force is in the opposite direction as the initial velocity of the bullet   b. yes, positive work, force is in the same direction as the initial velocity of the bullet   c. yes, positive work, force is in the opposite direction as the initial velocity of the bullet   d. No work was done on the bullet   e. yes, negative work, force is in the same direction as the initial velocity of the bullet

Two cars are moving. The first car has thrice the mass of the second car but only 1/3 as the kinetic energy. When both cars increase their speed by 9 m/s, they then have the same kinetic energy. Calculate the original speeds of the first car. a. 15.59 m/s2 c. 2.35 m/s2 b. 5.20 m/s2 d. 5.30 m/s2

What is the minimum amount of work needed to lift a 3 kg box 2 meters? a. 60 J b. 5 J c. 15 J d. 120 J e. 180 J