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What is the final speed of a car that starts at 75 mph and decelerates at a rate of 10 mphsec for 5 seconds?
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∙ 12y ago
25mph
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∙ 12y ago
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What is the final velocity of a train that starts at rest and accelerates for 15.0 seconds at an average acceleration of 2.40 meter per second squared?
Unknown: final velocity, vfKnown:initial velocity, vi = 0m/stime, t = 15.0saverage acceleration, a = 2.40m/s2Equation:vf = vi + atSolution:vf = 0 + 2.40m/s2 x 15.0s = 36.0m/s
If a car can go 0 to 60 mph in 8 seconds what would be its final speed after 5 seconds if its starting speed were 50 mph?
87.5mi/hr2
Two trains leave a station at the same time train A travels at a constant of 16ms train B starts at 8.0 ms but accelerates constantly at 1o ms After 10.0 seconds which train has the greater speed?
Do your own homework! The train travelling at the constant speed will still be doing 16ms after 10 seconds The other train adds 1m per second so, after 10 seconds it will have added 10, 10 + 8 = 18ms. It is going faster. or : you can find the final velocity : final velocity = vi+a(t) = 8+1(10) =18 m/s So Train B is faster.
What is the final speed of the marble at the bottom of the straight ramp and loop ramp?
A marble traveling at 3.0m/s starts to acceleration at 4.5m/s over a distance of 25m. what is the final speed of the marble?
What is the final velocity of a stone with an original velocity of 0 falling from a ledge that takes 8 seconds to hit the ground?
On Earth gravity equals 9.8 m/s^2. If you multiply that by 8 seconds you get: 78.4m/s
What is the velocity of an object that starts at 45 mph and accelerates at a rate of -10 mphsec for 3 seconds?
the final velocity = initial velocity + acceleration x time; since acceleration is negative final velocity = 45 - 10x3 = 45 -30 = 15 mph
What is the final speed of a car that starts at 60mph and decelerates at a rate of 10mph for 3 hours?
30mph
What is the final velocity of an object that starts at 45 mph and accelerates at a rate of -10 mphsec for 3 seconds?
the final velocity = initial velocity + acceleration x time; since acceleration is negative final velocity = 45 - 10x3 = 45 -30 = 15 mph
A child riding a bicycle at 15 meters per second decelerates at the rate of 3.0 meters per second squared for 4.0 seconds what is the child's speed at the end of the 4.0 seconds?
Its 3.0 m/s acceleration = (final_speed − initial_speed) / time_interval Solve the above for "final speed." They give you all the other quantities, so just plug them in. (Remember that "deceleration" means the acceleration is negative.
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