Use the graph to determine the instantaneous speed at
2 seconds.
m/s
What is the average speed over the entire trip?
m/s

A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?

How does the amount of energy required to hold each proton and neutron in the nucleus compare to the energy released when they are removed?

Using a wheel and axle, a farmer is trying to lift a bucket of water from the bottom of a well. the larger wheel has a radius of 40 cm compared to the axle that has a radius of 10 cm. if a bucket of water is 50 n, then how much effort is required to raise it? 12.5 n 200 n 2 n 500 n