- #1
Kpgabriel
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Homework Statement
A cord is used to vertically lower an initially stationary block of mass M = 35 kg at a constant downward acceleration of g/5. When the block has fallen a distance d = 6.5 m, find the work done by the cord's force on the block.
Find the work done by the weight of the block.
Find the kinetic energy of the block.
Find the speed of the block.
Homework Equations
W = F*d
F = m*a
The Attempt at a Solution
So I tried finding the first part of the question where I multiplied the mass, 35 kg, and multiplied it by the acceleration, 9.80/5= 1.96, to get F= 198N and then I multiplied the force by the distance to get the work and got 445.9 J but it is wrong.