What is marrow??????????????????????????
2 answers:
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Answer:
W = 16875 J
Explanation:
We have,
Mass of a motorcycle together with its rider is 150 kg
It is required to find the work is needed to set its movement at 15 metre per second. The work done is given by :
Plugging all the values in above formula such that :
So, the work of 16875 J is needed.
Answer:
When he weight of the car is 8.55 x N then power = 314.012 KW
When he weight of the car is 1.10 x N then power = 43.76 KW
Explanation:
Given that
Initial velocity = 0
Final velocity = 24.8
Time = 7.88 sec
We know that power required to accelerate the car is given by
P =
Change in kinetic energy Δ K.E =
Since Initial velocity = 0
⇒ Δ K.E =
⇒ Power P =
⇒ Power P = -------- (1)
(a). The weight of the car is 8.55 x N = 8550 N
Put all the values in above formula
So power P =
P = 314.012 KW
(b). The weight of the car is 1.10 x N = 11000 N
Put all the values in equation (1) we get
P =
P = 43.76 KW