Physics, 27.02.2020 16:50 victoria1831
A 61-kg acrobat must jump high and land on his brother's shoulders. To accomplish this, he leaps from a crouched position to a height where his center of mass is 1.20 m above the ground. His center of mass is 400 mm above the ground in the crouch and 900 mm above the ground when his feet leave the ground. What is the average force exerted on him by the ground during the jump?
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