A speedboat is moving along a straight line at a speed of 54km/h stops in 5 seconds after the brakes are applied.
[a] Find the acceleration assuming it to be constant.
Plot the graph of speed versus time. Using the graph find the distance covered by speedboat after brakes are applied

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Answers

The Brainliest Answer!
2015-05-19T19:53:31+05:30
Given 
u=54km/h=(54x5/18)m/s=15m/s
v=0
t=5s
we know 
a=(v-u)/t
a=(0-15)/5
a=--3 ms^{-2}

graph-see the attachment 

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