A skateboarder is moving at a constant velocity of 1.75 m/s when she starts up an incline that causes her to slow down with a constant acceleration of -.20 m/s^2. How much time passes from when she begins to slow down until she begins to move back down the incline?

A skateboarder is moving at a constant velocity of 1.75 m/s when she starts up an incline that causes her to slow down with a constant acceleration of -.20 m/s^2. How much time passes from when she begins to slow down until she begins to move back down the incline?
A ball is rolling down a hill was displaced 19.6 m while uniformly accelerating from rest. If the final velocity was 5.00 m/s. What was the rate of acceleration.
you push a 35 newton object for 3 seconds. find the work you did.