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Hi can you help me understand how to do this?

Hi can you help me understand how to do this?-example-1

1 Answer

4 votes

From the information given,

initial velocity of parachute = 198 ft/s

We want to convert 198 ft/s to m/s

Recall,

1 m = 3.3 ft

x m = 198 ft

By crossmultiplying, we have

3.3x = 198

x = 198/3.3

x = 60

Thus,

198 ft/s = 60 m/s

Rate = 60 m/s

To determine the distance that the parachute will fall in 10 seconds, we would apply one of Newton's equations of motion which is expressed as

s = ut + 1/2gt^2

where

s = distance covered

u = initial velocity

t = time

g = acceleration due to gravity and its value is - 9.8m/s^2

From the information given,

t = 10

u = 60

By substituting these values into the formula, we have

s = 60 x 10 - 1/2 x 9.8 x 10^2

s = 600 - 490

s = 110

The distance covered by the parachute in 10s is 110 m

User Paul T Davies
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