Atruck is moving around a circular curve at a uniform velocity of 13m/s centrepetal force on the truck is 3,300 n and the mass of the truck is 1,600

If what you are looking for is the radius of the curve, you can solve it by using this formula:



where: r = radius (m)
           m = mass (kg)
           v = velocity (m/s)
           F = Force (N or kg.m/s^2)

Your given is:
m = 1,600 kg
v = 13 m/s
F = 3,300 N

So we input it into your formula:

Answer observational;