1.

vehicle expense energy of 4000 joule while moving at a constant speed of 10 metre per second what is the mass of vehicle​

Answer»

Answer:

80 kg

Step-by-step explanation:

As we know during translation only energy is kinetic energy (NEGLECTING heat losses)

HENCE K.E=4000 J

=> 0.5*M*V*V=4000 J

=> 0.5*M*10*10=4000 J

=>0.5*100*M=4000 J

=>50*M=4000 J

=>M=4000/50

=>M=80 kg


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