Atruck is moving around a circular curve at a uniform velocity of 13 m/s. if the centripetal force on the truck is 3,300 n and the mass of the truck is 1,600 kg, what's the radius of the curve?

a. 81.94 m
b. 348.56 m
c. 109.09 m
d. 6.30 m

The answer is  m.

Centripetal force (F) is a force that makes body move around a circular curve. The unit of force is N (N = kg * m/s²).

It can be represented as:

where:
m - mass
v - velocity
r - radius of the curve

We have:
m = 1,200 kg
V = 20 m/s
F = 6,000 N = 6,000 kg * m/s²

We need radius of the curve:
r = ?

So, if  , then:
    
⇒ 
⇒ 
⇒ 
⇒ 

The Correct answer to this question for Penn Foster Students is: 81.94m

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