A 2000 kg pick-up rounds a curve on a flat road which has a radius of 60 meters and 3940 N force of friction. How fast can the car travel around the curve without sliding?

Explanation:

20 m/s

Explanation:

The frictional force the road exerts on the car provides the centripetal force that keeps the car in circular motion along the curve:

where

F is the centripetal force

m is the mass of the car

r is the radius of the curve

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg