What is the mechanical advantage of a single movable pulley

What is the mechanical advantage of a ramp 2.0 m long and 0.5 m tall

Lifting a car using a jack is easier because it requires

a wedge is a modified

what is the kinetic energy of a 1.4 kg discus with a speed of 22.5 m/2

an inclined plane

what is the gravitational potential energy of a 54 kg box that is 8m above the ground

which of the following is an example of mechanical energy

The efficiency of a ramp is 75%. If the amount of work input is 240 J, what is the amount of useful work output.

If a person tries to life a heavy box for 5 seconds and can't make it budge, the work down is less than zero

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