Its the first one with the circle and the arrows going around it
Answer:
the answer is d
Explanation:
the more mass there is, the larger the gravitational pull is.
We know that an athlete moves half of her body weight 250 N a distance of 20 cm.
So: F = 250 N, d = 20 cm = 0.2 m
The work formula:
W = F * d
W = 250 N * 0.2 m
W = 50 J
Answer: Her work after one push-up is 50 J.
I think that may depend on the individual viewer. I'm sure most people don't even notice it. To me, it sometimes becomes nocuous.
