Question

A car starts from rest and gain velocity of 10m/s in 2 sec. What will be the acceleration?

Answer 1

Answer:

acceleration,a = velocity/time

10m/s

= --------

2s

= 5m

Answer 2

ɢɪᴠᴇɴ :-

• Initial Velocity (u) = 0 m/s ----(start from rest)

• Final Velocity (v) = 10 m/s

• Time (t) = 2 seconds

Tᴏ ғɪɴᴅ :-

• Acceleration (a) = ?

sᴏʟᴜᴛɪᴏɴ :-

By using the First Equation of motion, we get,

➤ v = u + at

Put all the given values in this equation, we get,

➱ 10 = 0 + a×2

➱ 10 = 2a

➱ a = 10/2

➱ a = 5 m/s²

Hence,

➲ Acceleration (a) = 5 m/s²