Question

a body is moving with velocity 10m/s after 2 sec its velocity become 20 m/s calculate it's acceleration​

Answer 1

Answer:

sped

Explanation:

sped

Answer 2

$\huge\purple{Required \: Answer :}$

Acceleration = 5 m/s^2

$\huge\red{Explanation :}$

Given :

Initial Velocity (u) = 10 m/s

Time (t) = 2 sec

Final Velocity (v) = 20 m/s (After t = 2 sec)

To Find :

Acceleration (a) = ?

Formula :

v = u + at

Solution :

From Newton's First Equation of Motion,

$20= u + at \: \: \: \: \: \: \: \: \\ 20 = 10 + 2a \: \: \: \: \: \\ 2a = 20 - 10 \: \: \: \: \: \\ 2a = 10 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ a = \frac{10}{2} \: \: \: \: \: \: \: \: \: \: \: \: \\ a = 5 \: m {s}^{ - 2} \: \: \: \:$

Therefore, Acceleration of body is 5 m/s^2