Solving Force vs Time Graph Homework Problem

Thread starter jeya
Start date Oct 11, 2010
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Force Graph Time

AI Thread Summary

To solve the homework problem regarding the impulse of a rocket increasing its upward force, the correct approach involves calculating the average force over the time interval. The average force is determined by taking the sum of the initial and final forces, divided by two, and then multiplying by the time duration. The calculated impulse should be 6 x 10^7 N.s, which differs from the attempted solution of 9.75 x 10^7 N.s. Clarification on the calculation method and correct application of the impulse formula is necessary to arrive at the accurate answer.

Oct 11, 2010

jeya

Homework Statement

A rocket increase its upward Force uniformly from 5*10^6N to 8*10^6 Nover 15s

find the impulse?

Homework Equations

Impulse?

The Attempt at a Solution

My answer=(5*10^6 +8*10^6/2)15=9.75*10^7N.s

Book answer=6*10^7

please help me how to find the right answer?

Last edited: Oct 12, 2010

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Oct 11, 2010

PhanthomJay

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What is the question? (You forgot to include it)

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