Question

A cliff diver drops from rest to the water below. How many seconds does it take for the diver to go from 0 to 60; that is, to go from 0 mph to 60 mph.

Answer 1

Based on the data provided, the time it will take the cliff diver to go from 0 mph to 60 mph is 2.68 seconds.

What time does it take the cliff diver to go from 0 to 60 mph?

The velocity in mph is first converted to m/s

1 mph = 0.44704 m/s

60 mph = 0.44704 × 60 = 26.8 m/s

Using the equation of motion below:

• v = u + gt

where

• v is final velocity
• u is initial velocity
• g is acceleration due to gravity = 10 m/s^2

from the data provided:

v = 26.8 m/s

u = 0 m/s

g = 10 m/s^2

t = ?

t = v - u/g

t = 26.8 - 0/ 10

t = 2.68 seconds

Therefore, the time it will take the cliff diver to go from 0 mph to 60 mph is 2.68 seconds.

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