Question

a car starting from rest attains a velocity of 10m/s in 10s find its acceleration

Answer 1

Answer:

Acceleration of the car is 1/30 m/s².

Explanation:

Answer 2

Answer:

• Acceleration is 1 m/s².

Given:

• Final velocity = 10 m/s
• Time taken = 10 sec

Explanation:

$\rule{300}{1.5}$

Here, we are given that a car starts from rest attains a velocity of 10 m/s in 10 sec. We are asked to find it's acceleration.

Since, it starts from rest, so it's initial velocity will be zero.

From first kinematic equation we know,

$\longrightarrow{\sf{v\ =\ u\ +\ at}}$

Substitute the values,

$\longrightarrow{\sf{10\ =\ 0\ +\ a \times 10}} \\ \\ \\ \longrightarrow{\sf{10\ =\ 0\ +\ 10a}} \\ \\ \\ \longrightarrow{\sf{\dfrac{10}{10}\ =\ a}} \\ \\ \\ \longrightarrow{\sf{1\ =\ a}} \\ \\ \\ \longrightarrow{\sf{a\ =\ 1\ m/s^2}}$

∴ The acceleration of the car is 1 m/s².

$\rule{300}{1.5}$