Explanation:
Efficiency = work out / work in
e = 571 J / 1694 J
e = 0.337
Answer:
i believe he threw the ball up at about 18 mph
Explanation:
A. The cliff was 30.7 m high
B. I also got 9.5 as the horizontal distance
Here is my work, I find making charts like this one to find knowns and unknowns can be helpful
Possibly by the damage done compared to the previous ones.