Answer:
WOW ITS SO JUUUUIIICCCYY
Explanation:
U USED TO CALL ME ON MY POOPPHNE LATE NIGHT WHEN I NEEDED URRR POOOOPPP
Answer:
its d the nuber of gas powerd cars
Answer:
Explanation:
After the collision , both the car will have common velocity , which according to conservation of momentum will be as follows
v = 980 x 21 / (980 + 2300)
= 20580 / 3280
= 6.274 m /s
The kinetic energy of both the cars after collision
= 1/2 x (980+2300) x 6.274²
= 64555.44 J .
frictional force = μ mg where μ is coefficient of friction , mg is weight of both the cars
= .8 x (980+2300) x 9.8
= 25715.2 N
work done by friction will be equal to kinetic energy of car
25715.2 x d = 64555.44 ; where d is displacement of both the cars
d = 2.5 m
The answer should be A.
The faster you are going the more force will be added, as you brake you will feel about double the mass of the car causing longer braking distance.
