1. A 1200 kg car has a maximum power output of 180 hp. How steep a hill can it climb at a constant speed of 106 km/h if the frictional forces add up to 600 N?

Question

2. A 2.9 kg block slides with a speed of 1.1 m/s on a frictionless, horizontal surface until it encounters a spring.
(a) If the block compresses the spring 4.5 cm before coming to rest, what is the force constant of the spring?
N/m
(b) What initial speed should the block have if it is to compress the spring by 1.2 cm?
m/s