Question

John pushes forward on a car with a force of 290 N while Bob pushes backward on the car with a force of 180 N. What is the net force on the car? A. 110 N forward B. 370 N backward C. 370 N forward D. 110 N backward

Answer 1

the answer is a. 110 N forward

Answer 2

Answer:

A. 110 N forward

$F_{net} = 110 N$

Explanation:

As we know that force is a vector quantity so here we can say that

forward force is positive force while backward force on car is negative force

So here since John push the car in forward direction so we have

$F_1 = 290 N$

Now bob push the car in backward direction so

$F_2 = -180 N$

now the net force is given as

$\vec F = \vec F_1 + \vec F_2$

$\vec F = 290 - 180 = 110 N$

so net force on car will be 110 N in forward direction