Question

For a moving object, the force acting on the object varies directly with the objects acceleration. When the force of 63 N acts on a certain object, the acceleration of the object is 9/ms^2. If the acceleration of the object becomes 7 m/s^2 What is the force

Answer 1

49N

Explanation:

Step one

Given

When the force of 63 N acts on a certain object

the acceleration of the object is 9/ms^2

Firstly, we need to calculate the mass m

F=ma-------1

m= F/a

m= 63/9

m= 7kg

Step two:

Also, if the acceleration of the object becomes 7 m/s^2

then the force

Note: the mass remains the same= 7kg

F=ma

F=7*7

F= 49N