# Physics

posted by .

A bike first accelerates from 0.0m/s to 5.0m/s in 4.5s, then continues at this constant speed for another 4.5s. What is the total distance traveled by the bike?

• Physics -

a = (V-Vo)/t = 5-0)/4.5 = 1.11 m/s^2.

d1 = 0.5a*t^2 = 0.5*1.11*4.5^2=11.25 m.

d2 = 5m/s * 4.5s = 22.5 m.

D = d1 + d2 = 11.25 + 22.5 = 33.75 m.

• Physics -

A+B

## Similar Questions

1. ### Physics

A bike rider accelerates constantly to a velocity of 8.0 m/s during 4.2 s. The bike's displacement during the acceleration was 19 m. What was the initial velocity of the bike?
2. ### physics

there are 3 parts to my question. i need help on the last part. 1.a. A child rides a bike in a circular path with a radius of 2.0 m. The tangential speed of the bike is 2.0 m/s. The combined mass of the bike and the child is 43 kg. …
3. ### physics

A bike first accelerates from 0.0 m/s to 5.0 m/s in 4.5 s, then continues at this constant speed for another 4.5 s. What is the total distance traveled by the bike?
4. ### physics

a bike first accelerates from 0m/s to 5.0m/s in 4.55, then continues at this constant speed for another 4.5s. what is the total distance traveled by the bike?
5. ### physics

A bike rider accelerates constantly to a velocity of 7.4 m/s during 4.6 s. the bike's displacement is +18 m. What was the initial velocity of the bike?
6. ### physics

A speed bike tops a hill at 3.5 m/s and accelerates steadily down hill reaching a speed of 11.4 m/s after 4.2 seconds. How far did the bike travel during this period?
7. ### Physics

A bike first accelerates from 0.0m/s to 5.0m/s in 4.5s, then continues at this constant speed for another 4.5s. What is the total distance traveled by the bike?
8. ### science

A vehicle starts from rest and accelerates with a constant acceleration, covering 200m in 5s. it then continues at a constant velocity for 300m before decelerating with a constant 2m/s^2 deceleration to a stop. what is the maximum …
9. ### physics-distance

Here's a stationary bike. If you pedal such that the front wheel rotates at 6.9 rad/s, and that wheel's radius is half a meter, how far would you have gone in 35 minutes, if the bike where a non-stationary bike?
10. ### Physics

A stuntman drives a dirt bike on a curved track with a radius of 17.0 m. If he starts from rest and accelerates at 1.74 m/s^2, at what time will the magnitude of the total acceleration of the bike be 7.04 m/s^2?

More Similar Questions