what is the work to be done toh increase the velocity from 18km/h to 19km/h, it is the mass of the car is 2000kg
Answers
Answered by
1
mass =2000kg
let, V1=18KH/H=5M/S
V2=19KM/H=5.27M/S
We know E.k is ½ MV²
E.K IN 1 CASE = ½MV1²
= ½*2000*5
= 5000 J
E.K IN 2 CASE= ½MV2²
= ½*2000*5.27
=5270 J
WORK DONE TO increase ITS VELOCITY=CHANGE IN E.k
= V2-V1
= 5270-5000
= 270 J SHOULD BE THE WORK DONW
let, V1=18KH/H=5M/S
V2=19KM/H=5.27M/S
We know E.k is ½ MV²
E.K IN 1 CASE = ½MV1²
= ½*2000*5
= 5000 J
E.K IN 2 CASE= ½MV2²
= ½*2000*5.27
=5270 J
WORK DONE TO increase ITS VELOCITY=CHANGE IN E.k
= V2-V1
= 5270-5000
= 270 J SHOULD BE THE WORK DONW
Similar questions