Physics Problem! Help please?
You are shoveling snow. You exert 300 N at 30 degrees below the horizontal. You move the snow 12m in 270s?
a) What is the work exerted on the snow?
b) What is your power output during your "winter workout"?
Thank you!
You are shoveling snow. You exert 300 N at 30 degrees below the horizontal. You move the snow 12m in 270s?
a) What is the work exerted on the snow?
b) What is your power output during your "winter workout"?
Thank you!
Comments
Only the force exerted in the direction of motion contributes to work. Hence,
W = 300N • cos30º • 12m = 3118 N
P = W / t = 3118N / 270s = 11.5 W