A car weighing 1500 kg moves at uniform acceleration along a straight section of the highway.

A car weighing 1500 kg moves at uniform acceleration along a straight section of the highway. What is the modulus of the resultant force acting on the car if its speed modulus increases by 10 m / s in 10 s?

To find out the value of the modulus of the resultant forces, we will use Newton’s second zn: Fр = ma * a = ma * ΔV / t, where ma is the mass of the presented car (ma = 1500 kg); t – time of speed gain (t = 10 s); ΔV – increase in the speed module (ΔV = 10 m / s).

Let’s calculate: Fр = ma * ΔV / t = 1500 * 10/10 = 1500 N.

Answer: The modulus of the resultant forces, according to the calculation, is 1.5 kN.