a. The mass of cyclist together with the bike is 90 kg. Calculate the increase in kinetic energy if the speed increases" from 6"0 km/h to 12 km/h.
b. A block of mass 2"00 kg moving at a speed of lO"O m/s accelerates at 3"00 m/s" for 5"00 s. Compute its final kinetic energy.
c. A box is pushed through 4"0 m across a floor offering 100 N resistance. How much work is done by the resisting force ?
d. A block of mass 5"0 kg slides down an incline of inclination 30° and length 10 m. Find the work done by the force of gravity.