A 2 kg car moving towards the right at 4 m/s collides head on with an 8 kg car moving towards the left at 2 m/s, and they stick together. After the collision, the velocity of the combined bodies is
a. 0
b. 0.8 m/s towards the right
c. 0.8 m/s towards the left
d. 2.4 m/s towards the right
e. 2.4 m/s towards the left
C
Physics & Space Science
You might also like to view...
A swimmer has a metabolic rate of 600 W. How many breaths per minute should the swimmer take if her lungs take in 0.50 L of air in each breath, and the percentage of oxygen in the air is 21%?
a. 25.2 b. 120 c. 33.5 d. 17.1
Physics & Space Science
Earthquake waves are monitored by an instrument called a(n) ______________
Fill in the blank(s) with correct word
Physics & Space Science
If I short out a D cell and draw a current of 7 A for 5 s, how many coulombs of charge move through the circuit?
a. 7 C c. 7/5 C b. 5 C d. 35 C
Physics & Space Science
All Cepheids are giants, but not all giant stars are Cepheid variables
Indicate whether the statement is true or false
Physics & Space Science