Friday
March 27, 2015

Homework Help: College Physics

Posted by Megan on Thursday, October 15, 2009 at 10:43pm.

A boy of mass 64.1 kg is rescued from a hotel fire by leaping into a firefighters' net. The window from which he leapt was 7 m above the net. The firefighters lower their arms as he lands in the net so that he is brought to a complete stop in a time of 0.40 s. Ignore air resistance.

(a) What is his change in momentum during this time interval?

(b) What is the impulse on the net due to the boy during the interval? [Hint: Do not ignore gravity.]

(c) What is the average force on the net due to the boy during the interval?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Physics - A boy of mass 37.8kg. is rescued from a hotel fire by leaping into a ...
calculus - A forest is burning in a valley. If the fire burns for h hours, the ...
calculus - A forest is burning in a valley. it is estimated that if the fire ...
calculus - A forest is burning in a valley. it is estimated that if the fire ...
physics - A 700-N man jumps out of a window into a fire net 10 m below. The net ...
ap physics - A 650N man jumps out of a window into a fire net 8m below. The net ...
math - A fire covers 420 acres and continues to spread at a rate of 60 acres per...
science - A 65.7 kg person jumps from a window to a fire net 21.0 m below, which...
3rd grade - math to endure the heat,firefighters wear protective gear that ...
chemistry *Poorly defined commonly used question - "Why are active on-duty ...

Members