Question

A car is moving at a velocity of 25 km/h and increases velocity to 1200 km/h in 2 min. what is the acceleration?

plz help me out, thanks guys​

Answer 1

a = 2.72 [m/s2]

Step-by-step explanation:

To solve this problem we must use the following kinematics equation:

`v_(f) =v_(o) + a*t`

where:

Vf = final velocity = 1200 [km/h]

Vo = initial velocity = 25 [km/h]

t = time = 2 [min] = 2/60 = 0.0333 [h]

1200 = 25 + (a*0.0333)

a = 35250.35 [km/h2]

if we convert these units to units of meters per second squared

`35250.35[(km)/(h^(2) )]*((1)/(3600^(2) ))*[(h^(2) )/(s^(2) ) ]*((1000)/(1) )*[(m)/(km) ] = 2.72 [(m)/(s^(2) ) ]`