Question

A motor cycle of mass 480kg changes its speed from 3m/s to 8m/s.The change in its kinetic enery is what?

Answer 1

Original velocity = 3 m/s
New velocity = 8 m /s
Original kinetic energy = 1/2 mv²
New kinetic energy = 1/2 mV²
Change in Kinetic energy =>
=>New kinetic energy - Original kinetic energy
=> 1/2*m*(V²-v²)
=>1/2 * 480 *(64-9)
=> 240*55
=> 13200 kgm/s
Sorry for the late answer and Mark it the brainliest answer

Answer 2

Answer:

the formula is 1/2 m( v'2 - u'2

Explanation:

so 1/2 × 480× 8'2 -3'2 )

so 1/2 × 480×64-9

1×240×55

13200