EK 1001 Physics # 368

[Wishing4MD]

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Hey everyone!
I am having trouble with this question. I know that P=W/t, and for the Work, I am calculation F times d. For the force, I am suing the 200 N multiplied by 30cm (converting to m). For Power, I am getting 30 but the answer is 120. What am I doing wrong? Thank you!!!😕

 

[MedPR]

Hey everyone!
I am having trouble with this question. I know that P=W/t, and for the Work, I am calculation F times d. For the force, I am suing the 200 N multiplied by 30cm (converting to m). For Power, I am getting 30 but the answer is 120. What am I doing wrong? Thank you!!!😕

You're dividing by 2, when you should be dividing by 0.5.

time = 0.5seconds.
30cm = 0.3m
F=200N

P=Fd/time
P=(200*0.3)/0.5
P=60/0.5
P=60*2
P=120

 

[Wishing4MD]

Ahhhhhh ok, I see! VERY silly mistake. Thank you so much!!!😳