Calculate the final speed of skater - speed and distance, Physics

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A 50 kilogram ice skater glides across the ice in a straight line at 7 meters per second. 

If she bends down and scoops up a 20 kilogram child standing on the ice, what will be the final speed of the skater and the child?

a)  1 meter per second

b)  3 meters per second

c)  5 meters per second

d)  7 meters per second

Ans- 5 Meters per second

 


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