Asked by Anonymous

A hockey puck is hit on a frozen lake and starts moving with a speed of 14.4 m/s. 3.0 seconds later, its speed is 7.3 m/s.
(a) What is its average acceleration?

Answers

Answered by Anonymous
A hockey puck is hit on a frozen lake and starts moving with a speed of 14.4 m/s. 3.0 seconds later, its speed is 7.3 m/s.
(c) How far does the puck travel during the time interval?
Answered by Elena
v=v₀+at
a= (v-v₀)/t
s= v₀t-at²/2
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