The cyclist moves downhill with an acceleration of 0.5 m / s squared. What speed will the cyclist

The cyclist moves downhill with an acceleration of 0.5 m / s squared. What speed will the cyclist acquire in 30 s if his initial speed is 5 m / s?

a = 0.5 m / s2.

t = 30 s.

V0 = 5 m / s.

V -?

The acceleration of the body is a vector physical quantity that shows how quickly the speed of the body changes.

The acceleration of the body a is determined by the formula: a = (V – V0) / t, where V0, V are the initial and final velocity of the body, respectively, t is the time during which the velocity of the body changes.

V – V0 = a * t.

V = V0 + a * t.

V = 5 m / s + 0.5 m / s2 * 30 s = 20 m / s.

Answer: the cyclist will acquire a speed of V = 20 m / s.