- #1

Priyadarshini

- 191

- 4

## Homework Statement

A force

**F**= (2t

**i**+ 3t^2

**j**) N acts on an object moving in the xy plane. Find the magnitude of change in momentum of the object in time interval t=0 to t=2

(The bold ones are vectors)

## Homework Equations

Ft=change in momentum

## The Attempt at a Solution

magnitude of

**F**= (4t^2 + 9t^4)^(1/2)

taking t^2 common:

t(4+9t^2)^(1/2)

Ft=delta p

so, delta p = 2t(4 + 9t^2 ) ^ (1/2)

But the answer doesn't have ts in it.