Newton32 Newton32

23-11-2016
Physics

contestada

A ball thrown vertically upwards with an initial speed of 30m/s from the top of a cliff falls into the water 10seconds later directly below the cliff. Find
1.How high the ball went above the cliff
2.How high the cliff is ,neglecting air resistance

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AlphaBookworm16 AlphaBookworm16

23-11-2016

1. about 15 feet
2 depending the force of the air resictance, it could be many answers

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boscokwan boscokwan

23-11-2016

1. KEi = PEf
(1/2)m(30)^2= m(10)h
h=45m

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