Question

A roller coaster’s velocity at the top of a hill is 10 m/s. 2 seconds later it reaches the bottom of the hill with a velocity of 26 m/s. What was the acceleration of the coaster?

Answer 1

Given,

v=26 m/s

u=10 m/s

t=2 s

a=?

put formula

v=u+at

26=10+a×2

26-10=a×2

16=2a

a=8 m/s²

The acceleration of the coaster is 8 m/s²

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