ICSE Class 10 Answered
q14
Asked by nilesh.dhote74 | 28 Apr, 2020, 09:41: PM
Expert Answer
Hint
Here both the cars are similar. Consider masses similar
Recall the formula of KE = 1/2(mv2)
Here the speed has some direction, consider it has velocity.
Apply the formula and equate further.
You will get something like
KE car1 : KE Car 2
1/2m x 152 = 1/2m x 452
On simplification, this reduces to 1:9
Answered by | 28 Apr, 2020, 10:02: PM
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