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An exceptional standing jump would raise a person .80 m off the ground. TO do this, what force must a 60 kg person exert against the ground? Assume the person crouches a distance of .20 m prior to jumping, and thus the upward force has this distance to act over before he leaves the ground.
The answer is 2940N. How do i get that using kinematics equations?
Also...
A Person pushes a 16 kg lawn mower at constant speed with a force of 80 N directed along the handle, which is at an angle of 45 degrees to the horizontal. Calculate the force the person must exert on the lawn mower to accelerate it from rest to 1.5 m/s in 2.5 seconds (assuming same retarding force, 57 N)
Please help by step by step!
The answer is 2940N. How do i get that using kinematics equations?
Also...
A Person pushes a 16 kg lawn mower at constant speed with a force of 80 N directed along the handle, which is at an angle of 45 degrees to the horizontal. Calculate the force the person must exert on the lawn mower to accelerate it from rest to 1.5 m/s in 2.5 seconds (assuming same retarding force, 57 N)
Please help by step by step!