Question

A car travels a distance of 10cm with a constant Accalaration and average velocity of 20m/s. The final velocity acquired by the car is 25m/s Find initial velocity and Accleration of car

Answer 1

Answer:

VELOCITY FORMULA

S = D / T

Answer 2

Find-

Acceleration??

$\huge\underline{\overline{\mid{\bold{\orange{Given-}}\mid}}}$

• Total distance (s) = 10cm = 100m

• Average velocity = 20m/s

• Final velocity (v) = 25m/s

$\huge\underline{\overline{\mid{\bold{\red{formulas-}}\mid}}}$

• $\boxed{Average \ velocity = \dfrac{u+v}{2}}$----1

• $\boxed{2as = v^2 -u^2}$-----2

$\huge\underline{\overline{\mid{\bold{\blue{solution-}}\mid}}}$

using 1 we get, intial velocity u =15m/s

• =>Average velocity = u+v/2

• => 20 = u + 25/2

• => u = 15

using 2 we get,acceleration is 2m/s²

• =>2(a)(100) = (25)²-(15)²

• =>200a = 400

• =>a = 400/200

• => a = 2