Question

The velocity of car increases from 50 km per hour 90 km per hour in 0.3 minute calculate the acceleration produced the velocity of car increases from 30 km per hour 90 km per hour in 0.2 minute calculate the acceleration produced​? ​​

Answer 1

Answer:

The velocity of car increases from 50 km per hour 90 km per hour in 0.3 minute calculate the acceleration produced the velocity of car increases from 30 km per hour 90 km per hour in 0.2 minute calculate the acceleration produced?

Answer 2

Answer:

$a_{1}$ = 0.6177 $m/s^{2}$

$a_{2}$ = 0.3058 $m/s^{2}$

Explanation:

Case 1:

u = 50 km/h = 250/18 m/s = 13.88 m/s

v = 90 km/h = 25 m/s

t = 0.3 minute = 0.3*60 s = 18 s

a = (v - u)/t = (25 - 13.88)/ 18 = 11.12/18 = 0.6177 m/s^2

Case 2:

u = 30 km/h = 25/3 m/s = 8.33 m/s

v = 90 km/h = 25 m/s

t = 0.2 = 0.2*60 = 12 s

a = (v - u)/t = (12 - 8.33)/12 = 3.67/12 = 0.3058 m/s^2