Kinetic energy is stored in a stretched rubber
2 answers:
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The momentum of the car is 60,000 kg m/s
Explanation:
The momentum of an object is a vector quantity, whose magnitude is given by
where
m is the mass of the object
v is its velocity
For the car in this problem, we have
m = 2,000 kg
v = 30 m/s
Therefore, the magnitude of its momentum is
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Answer:
Explanation:
Given
velocity of driver =25 m/s w.r.t ground towards north
driver observes that rain is making an angle of with vertical
While returning =25 m/s w.r.t. ground towards south
suppose =velocity of rain drop relative car while car is going towards north
=velocity of rain drop relative car while car is going towards south
z=vector sum of
Now from graph
therefore magnitude of z is given by
Thus rain drops make an angle of w.r.t to ground
