Answer:
A. you would want to use the 12 ound ball and the 18 mph speed in order to transfer the most kinetic energy
B. KE= 1/2 MV^2 so you would want to maximize both your Mass(weight of the ball) and Velocity(speed of the roll) in order to achive the greatest KE.
C. see image
Explanation:
Full disclosure not totally sure what you are being asked in the last one but I put togethere a rough sketch that is my best guess.
Answer:
Explanation:
If F is the applied force and θ is the applied angle from horizontal with positive angle below the horizon
Fnet = Fcosθ - μ(mg + Fsinθ)
The only variable you've actually given us is the friction coefficient.
You'll have to plug your own numbers in.
Remember, if the applied force is acting towards the floor, the normal force is increased as will be the friction force. The net force will decrease.
If the applied force is acting upward, the θ angle will be negative and the normal force is decreased along with the friction force. The net force will increase.
I would say a because it just sounds right. I would've helped u if u had a real question question.
Snow leopards are solitary... If you ever see a two or more snow leopards together, consider yourself extremely lucky! Fun fact: There is no term for a group of snow leopards because it is so rare to see them in a group!
Your welcome!