Question

itrack initially moving with the speed of 50 km per hour accelerate and move with the speed of 70 kilometre per hour after 10 second calculate the acceleration of the truck

Answer 1

hey dear
here is your answer

given data :

initial velocity (u) = 50 km/hr or 13.88 m/s

final velocity (v) = 70 km/hr or 19.44 m/s

time taken (t) = 10 seconds

to find : acceleration (a)

solution :

by using first equation of motion

v = u+at

19.44 = 13.88 + 10a

10a = 5.56

a = 0.556 m/s^2

hope it helps :)

Answer 2

Initial velocity ( u ) = 50 km. per hour = 13.8 m.per second

Final velocity ( v) = 70 km. per hour = 19.4 m. per second
Time ( t ) = 10 second
a = v - u / t
( 19.4- 13.8)m.per second/10 second
5.6 m / s / 10s
0.56m/s^2