Author Question: One car is traveling twice as fast as a second car. How much more work can the first car do. ... (Read 18 times)

Charlie · **on:** Jul 29, 2018

One car is traveling twice as fast as a second car. How much more work can the first car do. compared to the second car, in smashing into a brick wall?

A) three times as much
B) four times as much
C) twice as much
D) the same amount as the second car
E) All of the above.

Question 2

A projectile is launched with an initial velocity of 80 m/s at 30 above the horizontal. Neglecting air, what is horizontal component of the projectile's acceleration?

A) 80 m/s2
B) 40 m/s2
C) 9.8 m/s2
D) 0 m/s2
E) 69 m/s2