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Determine if the given situation shows potential or kinetic energy.Calculate using the formula given below.
P.E.= mass x acceleration due to gravity x height
P.E.= N x h acceleration due to gravity = 9.8 m/s2 or 10m/s2
1 Newton (N) = 1 kg x 1 m/s2 or 1 kg m/2
KE = 1/2mv2
1. You throw a ball with a mass of 2.1 kg. The ball leaves your hand at 30m/s. The ball has ____________ energy. Calculate it.
2.There is a bell at the top of the tower that is 50 m high. The bell weighs 190N. The bell has _____________ energy. Calculate it.
3.At what height is an object that has a mass of 56 kg if its gravitational potential energy is 9800 J?
4. There is a blender ay the cabinet that is 5m high. The blender weighs 50N. The blender has ___________ energy. Calculate it
Sagot :
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