The answer to your question is C.
Answer:
C, weathering by the water.
Explanation:
While in the river, it scraps againsts other rocks and things, which causes it to change shape. For example be smoother and round.
The answer might be B because the value is negative, and negative could mean slowing down.
If velocity is decreasing, then acceleration is in the direction
opposite to the velocity.
If the object is moving in the direction that you call 'positive',
then acceleration is negative.
Answer:
Explanation:
Energy E is conserved:
If v₀ = 22m/s, h₀=0m and h₁=25m:
Solving for v₁:
There is no real solution, because the stone never reaches 25m.
