What work is said to be done to increase the velocity of a car from 15 km per hour to 30 km per hour if mass of the car is 1000 km
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friend
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Thankyou you asking question
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HERE YOUR ANSWER
m = 1000 kg
u = 15 km/h = 50/12 m/s
v = 30 km/h = 100/12 m/s
Work done = change in K.E.
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K.E. = 1/2 mv² = 1/2 * 1000 * 50/12 *
50/12 = 8680.5 J
K.E. = 1/2 mv² = 1/2 * 1000 * 100/12 *
100/12 = 34722.2 J
34722.2 - 8680.5 = 26041.7 J.
THANKYOU
friend
---------------------------------------------
Thankyou you asking question
---------------------------------------------
HERE YOUR ANSWER
m = 1000 kg
u = 15 km/h = 50/12 m/s
v = 30 km/h = 100/12 m/s
Work done = change in K.E.
==========================
K.E. = 1/2 mv² = 1/2 * 1000 * 50/12 *
50/12 = 8680.5 J
K.E. = 1/2 mv² = 1/2 * 1000 * 100/12 *
100/12 = 34722.2 J
34722.2 - 8680.5 = 26041.7 J.
THANKYOU
tarushgoswami7p6lbxf:
Thanks good anser
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