Answer:
B. the force of on the truck due to the collision is exactly equal to the force on the car.
Explanation:
At the time of collision between two objects of unequal or equal masses two forces emerge at the point of collision .They are called action and reaction force . According to third law of Newton , they are equal . So in the instant case of collision between car and truck , force on both of them will be equal.
D, small force for short time, as it has the least influence on the velocity.
C, momentum is velocity x mass, so if velocities are the same, then the object with less mass with have a lower momentum.
The formula for calculating the distance at constant
velocity is:
d = v * t
d = 15 t
The formula for distance at constant acceleration is:
d = v0 t + 0.5 a t^2
d = 15 t + 0.5 t^2
So after a sum distance of 164 m:
15 t + (15 t + 0.5 t^2) = 164
30 t + 0.5 t^2 = 164
t^2 + 60 t = 328
(t + 30)^2 = 328 + 30^2
t + 30 = ± 35.04
t = -65.04, 5.04
<span>Since time cannot be negative, so the two cars are 164 m
apart after about 5 seconds</span>
Answer:
They move outwards.
They don't intersect each other at any point.
They show the electric field.
Explanation:
