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Please help on as physics mechanics questions?

A car of mass 800kg has a maximum speed of 20ms-1 down a slope inclined at 2 degrees to the horizontal. The frictional resistance to motion of the car is constant, and of magnitude 1000N. Take g = 10ms-2.

a) Find the power of the car’s engine
b) Find its maximum speed up the same hill.
(edited 7 years ago)
Original post by Jas1947
A car of mass 800kg has a maximum speed of 20ms-1 down a slope inclined at 2o to the horizontal. The frictional resistance to motion of the car is constant, and of magnitude 1000N. Take g = 10ms-2.

a) Find the power of the car’s engine
b) Find its maximum speed up the same hill.


Have you drawn a force diagram?
Reply 2
Original post by hezzlington
Have you drawn a force diagram?


Yes but cant get a correct answer, ive been trying for ages
Original post by Jas1947
Yes but cant get a correct answer, ive been trying for ages


Post your working :smile:

Take a picture/scan your diagram so we can see what you've attempted.

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