During the annual shuffleboard competition, Renee gives her puck an initial speed of 9.32 m/s. Once leaving her stick, the puck slows down at a rate of - 4.06 m/s/s.

a. Determine the time it takes the puck to slow to a stop.

b. Use your initial speed and the calculated time to determine the average speed and the distance which the puck travels before stopping.

Question

Mathematics

Heather

22 October, 13:10

During the annual shuffleboard competition, Renee gives her puck an initial speed of 9.32 m/s. Once leaving her stick, the puck slows down at a rate of - 4.06 m/s/s.

a. Determine the time it takes the puck to slow to a stop.

b. Use your initial speed and the calculated time to determine the average speed and the distance which the puck travels before stopping.

+1

Answers (1)

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Kaila Roberson · Answer 1

A.) V = u + at

0 = 9.32 - 4.06t

4.06t = 9.32

t = 9.32 / 4.06 = 2.3 secs

b.) Average speed = |0 - 9.32| / 2 = 9.32/2 = 4.66 m/s

v^2 = u^2 + 2as

0 = (9.32) ^2 + 2 (-4.06) s

8.12s = 86.8624

s = 86.8624 / 8.12 = 10.7 m

distance = 10.7 s