A car weighing 2 tons, started, covered 100 m in 2 seconds. Find the pulling force.

Initial data: m (vehicle weight) = 2 t; S (path that the car has traveled) = 100 m; t (movement time) = 2 s; V0 (initial speed) = 0 m / s (the car was moving away).

SI system: m = 2 t = 2 * 10 ^ 3 kg.

1) Determine the acceleration of the car:

S = a * t ^ 2/2 and a = 2S / t ^ 2 = 2 * 100/2 ^ 2 = 50 m / s ^ 2.

2) Calculate the traction force of the car (Newton’s second law):

F = m * a = 2 * 10 ^ 3 * 50 = 100 * 10 ^ 3 H = 100 kN.

Answer: The thrust force of the car engine is 100 kN.



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