A 1,954-kg car is moving up a road with a slope (grade) of 39%while slowing down at a rate of 3.4 m/s^2. What is the directionand magnitude of the frictional force?(define positive in theforward direction, i.e., up the slope)?
A 2,149-kg car is moving up a road with a slope (grade) of 10%while slowing down at a rate of 3.8 m/s^2. What is the directionand magnitude of the frictional force?
(define positive in the forward direction, i.e., up the slope)? A 1,712-kg car is moving up a road with a slope (grade) of 24%while speeding up at a rate of 1.4 m/s^2. What is the direction andmagnitude of the frictional force?
(define positive in the forward direction, i.e., up the slope)? |
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