At the ground the ball will always have velocity along the direction of gravity. If upward motion is taken positive it will always have negative velocity at the ground because, if the ball was given an initial upward velocity then gravity will decelerate it and bring it down with a negative final velocity. If the ball is given an initial downward velocity then the ball will be further accelerated by gravity in the downward direction only, again maintaining negative direction. The magnitude however in both cases will be different. the final velocity at the ground will have higher magnitude in case of elevator moving downwards.
Answer:
sometimes sunset could sometimes cause a pink and orange cloud
Answer:
the extension recorded by the student would be smaller than the actual extension of the spring
Answer:
power =( 890 N x 12 m ) / 22 s=
= 485 Watts
Explanation:
