Answer:
Okay I might be wrong and sorry if i am either its 12 or 0.402
Explanation:
* I recommend the second one cause its more logical
Be aware I might be wrong
Answer: its 19 m/sec
Explanation: gotta multiply the speed by 2 so 9.8 X 2 = 19
Answer:
The ball is in the air for approximately 0.45 seconds
Explanation:
We only need to use the information on the height of the table to find the time, since the vertical movement is a movement under the acceleration of gravity, and with no initial velocity in the y-direction (recall that the ball rolls off a 1.0 m high table)
therefore the equation of motion for the vertical component is:
which for our information becomes:
Answer:
11 m/s
Explanation:
Impulse equals change in momentum.
I = Δ(mv)
Since mass isn't changing:
I = m Δv
16 Ns = (2.0 kg) (v - 3.0 m/s)
v = 11 m/s
Answer:
a. A book resting on the floor
Explanation:
Potential energy is the energy stored in a object due to its position relative to some zero position. An object possesses gravitational potential energy if it is positioned at a height above/below the zero height.