A truck accelerates at 4.7 m/s for 150 m, reaching a final velocity of 47 m/s. What was it’s initial velocity?

We can use option C

Initial velocity=28.3m/s

Explanation:

acceleration(a)=4.7m/s^2

distance(d)=150m

Final velocity(v)=47m/s

Initial velocity(u)=?

V^2=u^2+2xaxd

47^2=u^2+2x4.7x150

2209=u^2+1410

U^2=2209-1410

U^2=799

U=√(799)

u=28.3m/s

= initial pressure

= final pressure = 2

= initial volume

= final volume = /4

= initial temperature = 20 c = 20 + 273 = 293 k

= final temperature = ?

using the equation