# Shared Flashcard Set

## Details

knipp - speed & velocity problems
sample speed and velocity problems
8
Physics
02/01/2010

Term
 What is the speed of a car that takes 4 hours and 15 minutes to travel 215 miles?
Definition
 51 mph
Term
 convert 45 miles per hour to feet per second
Definition
 66 feet/second
Term
 If light travels at a speed of 300,000 km/sec, how long will it take sunlight to reach Earth? (Earth is 150,000,000 km from the Sun)
Definition
 500 seconds or 8.3 minutes
Term
 If an object is dropped from a plane, how long will it take to reach a speed of 145 m/sec. ?
Definition
 14.8 seconds
Term
 What is the acceleration of a car that increases its speed from 30 km/hour to 75 km/hour in 15 seconds?
Definition
 3 km/hr/sec
Term
 How far can a cyclist travel in 5 hours, 20 minutes if his average speed is 17 miles per hour?
Definition
 almost 91 miles
Term
 What is the speed of a rock 15 seconds after being thrown out of a plane?
Definition
 147 m/sec
Term
 Which is traveling the fastest - a car at 50 miles per hour or a bus traveling 50 feet per second?
Definition
 the car (73 ft./sec.)
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