3 years ago

A 1000 KG car has 50,000 joules of kinetic energy. What is the speed?

Mathematics

2 answers:

zhannawk [14.2K]3 years ago

7 0

KE=1/2mv^2
50000=(0.5)(1000)v^2
v^2=50000/500
v^2=100
v=10 ms^-1

GenaCL600 [577]3 years ago

4 0

Answer:

½mv²= KE

½(1000)?²= 50000

500 500

? ²=100

Square root

?= 10

10 m/s is you answer

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