Question

Автомобіль масою 2т, зрушився з місця, за 40с набува швидкості 36км/год. Знайти прискорення автомобілля.

Answer 1

Ответ: 0,4м/с²

Объяснение:

Дано:

m=2т

Vo=0

V=36км/ч=10м/с

t=40c

---------------------------

а-?

V=Vo+at

V=at

a=V/t=10/40=0,4м/с²

Answer 2

Calculating the Acceleration of the Car

To calculate the acceleration of the car, we can use the following formula:

Acceleration (a) = Change in velocity (Δv) / Time taken (t)

Given: - Initial velocity (u) = 0 km/h (since the car started from rest) - Final velocity (v) = 36 km/h - Time taken (t) = 40 s

First, we need to convert the final velocity from km/h to m/s, as the standard unit for acceleration is m/s^2.

1. Convert the final velocity from km/h to m/s: - 1 km/h = 0.27778 m/s - Final velocity (v) = 36 km/h * 0.27778 m/s = 10 m/s

Now, we can calculate the acceleration using the formula:

Acceleration (a) = (Final velocity - Initial velocity) / Time taken

Acceleration (a) = (10 m/s - 0 m/s) / 40 s

Acceleration (a) = 10 m/s / 40 s

Acceleration (a) = 0.25 m/s^2

Therefore, the acceleration of the car is 0.25 m/s^2.