- #1
bard
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A stone is thrown vertically upward with a speed of 10 m/s from the edge of the cliff 65 m high. It reaches the ground sometime later
a) what is the acceleration and velocity at the highest point. (I got acceleration=9.8 m/s^2 and velocity=o)
b)What is the displacement for the freefall portion of the trip? (I got 0 m)
c) what is the final free fall velocity?
d) how long is the stone in freefall?
2)A car starts from rest and accelerates uniformily to a speed of 30 m/s in 10s. The driver maintains this speed for another 10s.
What is the displacement for the entire 20s trip?
Thanx a lot
a) what is the acceleration and velocity at the highest point. (I got acceleration=9.8 m/s^2 and velocity=o)
b)What is the displacement for the freefall portion of the trip? (I got 0 m)
c) what is the final free fall velocity?
d) how long is the stone in freefall?
2)A car starts from rest and accelerates uniformily to a speed of 30 m/s in 10s. The driver maintains this speed for another 10s.
What is the displacement for the entire 20s trip?
Thanx a lot