Question

if a car moving with 36 km per hour increase its speed to 54 km per hour in 10 seconds find acceleration and distance covered by the car in its time ​

Answer 1

Step-by-step explanation:

Vo = 36 km/h

Vf = 54 km/hr

t = 10 s × 1 hr/3600 s = 1/360 hr

SOLUTION:

a = (Vf - Vo)/t

a = (54 km/hr - 36 km/h)/1/360 hr

a = (18 km/hr)/ 1/360 hr

a = 6480 km/hr²

d = Vo(t) + 1/2 (a)(t²)

d = (36 km/hr × 1/360 hr) + 1/2 (6480 km/hr²)(1/360 hr)²

d = 1/10 km + 1/40 km

d = 0.125 km