An automobile accelerates 1.77 m/s2 over 6.00 s to reach freeway speed at the end of an

entrance ramp. If the car's final speed is 24.44 m/s, what was its initial speed when it

began accelerating?

Question

Lewis Santana

Physics

19 April, 08:59

An automobile accelerates 1.77 m/s2 over 6.00 s to reach freeway speed at the end of an

entrance ramp. If the car's final speed is 24.44 m/s, what was its initial speed when it

began accelerating?

+2

Answers (1)

Know the Answer?

Deangelo Hodge · Answer 1

Startinfg speed is 13.82 m/s

Explanation:

Use equation for realtion between start and final speed:

Vf=Vs+a*t

Vf-final speed

Vs-start speed

Vf=24.44m/s

a=1.77m/s² (acceleration)

t=6.00s (Time)

Vf=Vs+a*t

Vs=a*t-Vf

Vs=1.77m/s²*6s-24.44m/s

Vs=-13.82m/s

An automobile accelerates 1.77 m/s2 over 6.00 s to reach freeway speed at the end of anentrance ramp. If the car's final speed is 24.44 m/s, what was its initial speed when itbegan accelerating?

An automobile accelerates 1.77 m/s2 over 6.00 s to reach freeway speed at the end of an

entrance ramp. If the car's final speed is 24.44 m/s, what was its initial speed when it

began accelerating?