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Use the KE and GPE equations to solve for speed or height depending on the situation.


A 1,000-kg car has 50,000 joules of kinetic energy. What is its speed?

(please show work)

Verified Answer :

ma364054

Kinetic energy = 0.5massvelocity²  
0.51000v²=50,000
v²=50,000/(0.51000)

v=√(50,000/(0.51000))
v=√100=
v=10m/s²

fc808

Answer:

½mv²= KE

½(1000)?²= 50000

500*?²= 50000

/500            /500

? ²=100

Square root

?= 10

10 m/s is you answer

Explanation:

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