Hi,
Could someone please help with a set of general Force questions, showing all calculations, the problems are as follows:

A car, of mass 1.2 tonnes, rolls down a hill which is 600m long and is inclined at an angle of 9 degrees to the horizontal. Ignoring the effects of air resistance and friction and assuming the car to start from rest at the top of the hill, calculate:

a. Its speed as it reaches the bottom of the hill.
b. Its acceleration down the hill.
c. The time taken for it to reach the bottom of the hill.
d. The change in the momentum of the car, between the top of the hill and the bottom of the hill.
e. The change in kinetic energy for the car, between the top of the hill and the bottom of the hill.

If the brakes are applied at the bottom of the hill, slowing the car at a rate of 7.5 meters per second squared, calculate:

f. The stopping distance.
g. The speed of the car after 5 seconds braking.

Thanks to all in advance, for all help and advice given.