Question

for a block of mass m to slide without friction up the rise of height h shown .it must have a minimum initial speed of

Answer 1

As the stone is being tossed, in case we disregard the air grinding, the level part of the speed stays consistent.

In case an is the edge made by the speed vector with the flat plane, at that point the level sped will be v cosa (I viewed v as the size of the speed vector).

Answer 2

Answer:

Explanation:to reach that height body must have same potential energy so therefore "kinetic energy = potential energy "

1/2 mv^2=mg

V=(2gh)^1/2