A car slows down from 32 m/s to rest in a distance of 88 m. What is its acceleration?

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(a)  

An engineer is designing a runway for an airport. Several planes will use the runway and the engineer must design it so that it is long enough for the largest planes to become airborne before the runway ends. The largest plane accelerates at 3.30 m/s² and has a takeoff speed of 88.0 m/s. How long will it take the planes to reach takeoff speed?

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(a)  

An engineer is designing a runway for an airport. Several planes will use the runway and the engineer must design it so that it is long enough for the largest planes to become airborne before the runway ends. The largest plane accelerates at 3.30 m/s² and has a takeoff speed of 88.0 m/s. What must be the minimum length of the runway?

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(a)  

Ima Hurryin approaches a stoplight in her car which is moving with a velocity of +20.0 m/s. The light turns yellow, Ima applies the brakes and skids to a stop. If Ima's acceleration is -7.00 m/s², determine the displacement of the car during the skidding process.

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(a)  

In coming to a stop, a car leaves skid marks 65 m long on the highway. Assuming a deceleration of 4.00 m/s², calculate the speed of the car just before breaking.

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(a)  

Chuck Wagon travels with a constant velocity of 0.5 mile/minute for 10 minutes. Chuck then decelerates at -0.25 mile/min² for 2 minutes. Determine the total distance traveled by Chuck Wagon during the 12 minutes of motion.

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(a)  

A bicyclist in the Tour de France crests a mountain pass as he moves at 15 km/hr. At the bottom, 4.0 km farther, his speed is 65 km/hr. Calculate the average acceleration (in m/s²) while riding down the mountain.

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(a)  

A bicyclist in the Tour de France crests a mountain pass as he moves at 15 km/hr. At the bottom, 4.0 km farther, his speed is 65 km/hr. How long (in minutes) did it take to reach the bottom from the crest of the mountain?

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(a)  

An airplane travels 2100 km at a speed of 720 km/hr, and then encounters a tailwind that boosts its speed to 990 km/hr for the next 2800 km. What was the total time for the trip?

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(a)  

An airplane travels 2100 km at a speed of 720 km/hr, and then encounters a tailwind that boosts its speed to 990 km/hr for the next 2800 km. What was the average speed of the plane for this trip?

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(a)  

A ship accelerates at -7.63 × 10^-2 m/s² so that it comes to rest at the dock 255 m away in 82.0 s. What is the ship's initial speed?

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(a)  

A student drives 4.80 km to school and averages a speed of 22.6 m/s. On the return trip home, the student travels with an average speed of 16.8 m/s over the same distance. What is the average speed (in m/s) of the student for the two-way trip?

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(a)