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Horizontal and vertical speed

0 votes

An arrow is fired horizontally at 30m/s from a height of 80m. At what speed will it hit the ground in m/s?

asked Mar 19, 2016 in PHYSICS by zhol2222 Rookie
reshown Mar 19, 2016 by casacop
Answer is 50m/s

1 Answer

0 votes

Arrow is fired horizontally at a speed of .

Arrow is fired horizontally at a speed of .

Arrow is fired horizontally at a height of  from ground.

Find the final velocity of the arrow when it will hit the ground.

Newton thid law of motion: .

.

Final velocity of the arrow when it hits the ground is .

answered Mar 19, 2016 by cameron Mentor
edited Mar 19, 2016 by steve
This is what i thought aswell but the answer says its 50m/s
Please check the updated answer
Thank you!

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