Sunday

February 1, 2015

February 1, 2015

Posted by **Jon** on Sunday, March 30, 2008 at 4:23pm.

10)An airplane must achieve a velocity of 71 m/s to takeoff. If the runway is 1000m long, at what speed must the plane constantly accelerate?

0.071 m/s^2

- Physics(check) -
**Quidditch**, Sunday, March 30, 2008 at 5:22pmChecking your answer for 10:

For an initial velocity of 0, final velocity can be expressed as:

V = SQRT(2 * acceleration * distance)

Using your answer of 0.071 m/s:

V = SQRT(2 * (0.071 m/s^2) * 1000m)

V = SQRT( 142.0 m^2/s^2)

V = 11.92 m/s

Uh-oh! Not enough velocity by the end of the runway!

- Physics(check) -
**Jon**, Sunday, March 30, 2008 at 6:18pm2.52 for #10

- Physics(check) -
**Quidditch**, Sunday, March 30, 2008 at 6:25pmYes!

2.52 m/s^2 is what I got also.

- Physics(check) -

**Answer this Question**

**Related Questions**

Physics - You are taking a road trip to the beach for Spring Break. You leave at...

physics repost - 9)You are taking a road trip to the beach for Spring Break. You...

Math - A semi-truck travels on a paved road for 2 hours at an average speed of ...

physics - You are going for a bike ride. You ride down a straight road at a ...

math - Martin rides to Cambridge 30 miles away from home at the average rate of ...

VNS,Math - A man walked into the road at 4 miles per hour and returned over the ...

Physics - The design of a new road includes a straight stretch that is ...

Physics - Attempting to stop on a slippery road, a car moving at 90 km/h skids ...

Physics - a driver sees a horse on the road and applies the brakes so hard that ...

Physics - A car with a mass of 900 kg moves along a road at a 89 km/hour at ...