A 25kg case is sitting on a 20 degree incline plane. If the vase experiences friction with a coefficient of 0.1 will the vase move down the incline and if so with what acceleration? Yes, it moves down the ramp with an acceleration of 0.9m/s/s
No, the vase will not move down the incline plane
Yes, it moves down the ramp with an acceleration of 9.8m/s/s.
Yes, it moves down the ramp with an acceleration of 2.4m/s/s

Astone is dropped from the upper observation deck of a tower, 250 m above the ground. (assume g = 9.8 m/s2.) (a) find the distance (in meters) of the stone above ground level at time t. h(t) = (b) how long does it take the stone to reach the ground? (round your answer to two decimal places.) s (c) with what velocity does it strike the ground? (round your answer to one decimal place.) m/s (d) if the stone is thrown downward with a speed of 2 m/s, how long does it take to reach the ground? (round your answer to two decimal places.) s