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Physics, 07.12.2020 14:00 gennhill14

Braking a car - Will mark the brainliest When a car of mass 1000kg is travelling along a level road at a steady speed of 20ms −1

its engine is working at 18kW.

Part D: By how much does this change if the car is travelling down the same hill at 20ms −1

Resistive force = 900N

Brake force = 3100N

Mass of car = 1000kg

initial car speed = 20ms-1

Angle of incline sin theta = 1/20 = 0.05

Magnitude of gravitional field strength = 9.81

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