Question

A truck moving at the speed of 10m/s
acceleration for 15 min and attains the
velocity 20m/s Calculate the acceleration​

Answer 1

Answer:

Acceleration = 0.011 m/s²

Explanation:

Given:

• Initial velocity of truck = u = 10 m/s
• Final velocity of truck = v = 20 m/s
• Time = t = 15 minutes

To find:

Acceleration = a = ?

Solution:

Firstly, convert the time given in minutes to seconds.

15 minutes = 15 × 60 sec = 900 seconds

Now,

Acceleration = Change in velocity ÷ Time

⇒ a = (v - u) ÷ t

⇒ a = (20 - 10) ÷ 900

⇒ a = 10 ÷ 900

⇒ a = 0.011 m/s²

∴ Acceleration of truck = 0.011 m/s²

KNOW MORE:

• First Equation of motion:

v = u + at

• Second Equation of motion:

s = ut + 1/2 at²

• Third Equation of motion:

v² - u² = 2as