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What is the acceleration if a car is going 20 km per hr and speeds up to 30 km per hr in 5 seconds?
To solve this, we take the change in speed and divide it by the change in time. 10 km/hr divided by 5/60 hr = 0.833 km/hr2
What is the displacement of a car moving along a straight line path that increases its speed from 0 to 100 km per hour in 10 seconds?
Speed when acceleration begins = 0Speed when acceleration ends = 100 km per hourAverage speed during the 10 seconds = 50 km per hourDistance = (average speed) x (time) = (50 km/hr) x (1 hr/3,600 sec) x (10 sec) = 1388/9 meters
How long wel you're trip take if you travel 350 km at an average speed of 80 km per hr?
speed=distance/time therefore time=distance/speed 350/80=4.375 hours :)
How many miles per hour to run a ten minute mile?
One mile per ten minutes is six miles per hour (average speed). ============= Solution Method: ----------------- There are 60 minutes in 1 hour. We often say there are 60 minutes per hour. We express this relationship mathematically as: 60 min/hr To convert miles/min to miles/hr, do the following: 1 mile/10 min * 60 min/1 hr = 60 / 10 = 6 miles/hr (average speed) * Note: minutes cancel in the numerator & denominator).
Find the speed 128inches in 16 hour?
8 in per hr.
