contestada

A car Starts from rest and moves with constant acceleration.During the 5th second of its motion, it covers a distance of 36 meters. What is the acceleration of the car? A) 12 meter per second B) 8 meter per second C) 15 meter per second D) 16 meter per second E) 14 meter per second

Respuesta :

Answer:

Acceleration of the car = 2.88 meter/second²

Explanation:

Given:

Car starts from rest

So,

Initial velocity = 0 m/s

Time taken = 5 second

Distance cover in 5 seconds = 36 meter

Find;

Acceleration of the car

Computation:

Using second equation of motion

S = ut + (1/2)(a)(t²)

Where;

S = Distance cover

u = Initial velocity

a = Acceleration

t = time taken

So,

S = ut + (1/2)(a)(t²)

36 = (0)(5) + (1/2)(a)(5²)

36 = (1/2)(a)(25)

36 x 2 = (a)(25)

72 = (a)(25)

Acceleration of the car = 2.88 meter/second²

Otras preguntas