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3 years ago

a resultant force of 4n acts on an object of mass 0.50kg for 3 seconds. what is the change in velocity caused by this force

Physics

1 answer:

Vilka [71]3 years ago

6 0

Answer:

24 m/s

Explanation:

force = mass ×acceleration

acceleration = force / mass

acceleration = 4/0.50

acceleration = 8.0 m/s^2

acceleration = change in velocity /time

hence

change in velocity = acceleration × time

change in velocity = 8×3

change in velocity = 24 m/s

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The gravitational potential energy of an object is given by

$U=mgh$

where

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In this problem,

h = 15 m

We call 'm' the mass of the ball, since we don't know it

So, the potential energy of the ball at the top of the hill is

$U=(m)(9.8)(15)=147 m$ (J)

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3 years ago

a resultant force of 4n acts on an object of mass 0.50kg for 3 seconds. what is the change in velocity caused by this force​

a resultant force of 4n acts on an object of mass 0.50kg for 3 seconds. what is the change in velocity caused by this force