Question

A 3kg object travels in a uniform circle at a constant speed of 12m/s. The centripetal force acting on the object is 110 Newtons.

Calculate the weight of the object

Answer 1

Given:

$m=3\: \rm kg$

$v=12\: \rm m/s$

$F_c=110\:\rm N$

The weight of an object

$$W=m(a+g)=F_c+mg\\ \rm =110\: N+3\: kg*9.8\: m/s^2=139.4\: N$$