Answer to Question #88653 in Mechanics | Relativity for CHYE YE SAN

Question

A 4 kg ball is propelled off a track with a force 200 N. The force of gravity on the ball is
40 N. Determine the resultant force on the ball

Answer 1

There are two forces acting on the ball:

1)The force of gravity , which is directed downward.

2)The propelling force, which points upward.

The resultant force is a vector sum of two forces.

In our case:

$$F=F_{prop}-F_{grav}=200-40=160N$$

So, the resultant force is 160N, directed upwards.