Answer:
Explanation:
Fa - u*m*g = m*a
Fa = u*m*g + m*a
Fa - m*a = u*m*g
u =
traveling at about 30 mph, how many feet will the average driver cover from the time they see the danger until they hit the brak
1 answer:
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Answer:
The velocity of the truck after this elastic collision is 15.7 m/s
Explanation:
It is given that,
Mass of the car,
Mass of the truck,
Initial velocity of the car,
Initial velocity of the truck, u₂ = 0
After the collision the velocity of the car is, v₁ = -11 m/s
Let v₂ is the velocity of the truck after this elastic collision. Using the conservation of momentum as :
So, the velocity of the truck after this elastic collision is 15.7 m/s. Hence, the correct option is (c).