The graph represents the distance a car travels over time while on the highway. what is the average velocity of the car? a) 28 km hr eliminate b) 50 km hr c) 75 km hr d) 100 km hr

answer is C

slope= (y2-y1)/(x2-x1)=(300 km-0km)/(4h-0h)=(300km)/(0 h)=75km/h

v=d/t= 150/2=75

Average velocity is given as the total displacement of an object over a given time interval

Average velocity = total displacement /time interval

consider the time interval t₁ = 0  to t₂ = 4

at t₁ = 0 , d₁ = 0 km

at t₂ = 4 , d₂ = 300 km

Δd = total displacement = d₂ - d₁ = 300 - 0 = 300 km

Δt = time interval = t₂ - t₁ = 4 - 0 = 4 h

average velocity is given as

V = Δd/Δt = 300/4 = 75 km/h

Hence the correct choice is

C) 75 km/hr

the box does not move because you need to use a force greater than 300 n. you are only using 50 n. it needs to at least be 301 n for the box to move because then it is an unbalanced force and it will move the way that the greater force is pushing it. if you use only 300 n it will be a balanced force and will not move because the force you are exerting on the   box is the same as its force.

hope this !

im sorry if i went too in depth, i am going to include a link to a video on khan academy that will explain this.   hope that you like the video and that it explains more in detail to you.

that is the link.

c) up

hope this