Math, asked by jankipaila, 4 months ago

9. A motor cycle of mass 480 kg changes its speed from 3 m/s to 8 m/s. The change in KE

Answers

Answered by jayprasad909

0

Answer:

kE in first case=

1/2. mv²= 1/2×480×3²=2160J

KE in second case=

1/2.mv²=1/2×480×8²=15360J

so change will be 15360-2160=13200J

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