Question

What is the magnitude of force required to accelerate a car of mass 1.7 × 10³ kilograms by 4.75 meters/secondÆ?

A. 3.6 X 10 ^3 N
B. 1.7X10^3 N
C. 8.1X10^3 N
D. 9.0X10^3 N

Answer 1

Best Answer:  8.075*10^3 NewtonsSource(s):Newton's Second Law of Motion P=MA

Answer 2

Answer:

Magnitude of force is $F=8.1\times 10^3\ N$

Explanation:

It is given that,

Acceleration of car, $a=4.75\ m\s^2$

Mass of car, $m=1.7\times 10^3\ kg$

We have to find magnitude of force. It is given by using Newton's second law of motion which states that force is given by the product of mass and acceleration :

F = m a

$F=1.7\times 10^3\ kg\times 4.75\ m/s^2$

$F=8.075\times 10^3\ N$

or

$F=8.1\times 10^3\ N$

Hence, the correct option is (c)