Question

If an object starts with an initial velocity of 10 m/s. and accelerates at 2 m/s?. Its velocity at t = 10 s is
(a) 10 m/s
(b) 20 m/s
(c) 30 m/s (d) None of these
nroiection​

Answer 1

Given :-

• If an object starts with an initial velocity of 10 m/s. and accelerates at 2 m/s². t = 10s

To find :-

• Final velocity

Solution :-

• Initial velocity = 10m/s

• Acceleration = 2m/s²

• Time taken = 10s

According to first equation of motion

→ v = u + at

Where " v " is final velocity, " u " is initial velocity, " a " is acceleration and " t " is time

Put the values of u, a and t

→ v = 10 + 2 × 10

→ v = 10 + 20

→ v = 30 m/s

Hence,

• Final velocity of an object is 30m/s

More to know :-

• The rate of change in velocity is known as acceleration

• Its S.I unit is m/s (metre per second square)

• Retardation → When acceleration value is negative.

Answer 2

Answer:

If an object starts with an initial velocity of 10 m/s. and accelerates at 2 m/s?. Its velocity at t = 10 s is

(a) 10 m/s

(b) 20 m/s

(c) 30 m/s (d) None of these

nroiection