Asked by mark

a car of mass 3000kg moving at 20m/s is suddenly brought to a stop when a deer crosses the road. if a braking force of 300,000 is needed to bring the car to a stop, what was the duration of the force?
Answered by bobpursley
force*brakingtime=mass*changevelocity

solve for braking time.
Answered by yan yan
a car of mass 1200 kg accelerates steadily from rest down an steady incline at 15 degree to the horizontal . if the slope is 100 m long , calculate the work out the loss potential energy as the car moves down the slope
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