The book has potential energy and the bike has kinetic.
kinetic energy is energy possessed when a object is in motion. The bike is moving. Therefore, it has kinetic energy. The book isn't moving. Hopefully that helped
Answer:
Explanation:
The first equation of motion given as,
v = u +at
Here, u is initial and v is final velocity and a is acceleration and t is time taken.
As per question car initial velocity, u = 90 m/s, final velocity, v =0 and time taken, t = 3.00 s.
Substituting these values in first equation of motion, we get
0 = 90 m/s + a×3.00 s
or,
Thus, the deacceleration of the car is
I'll put what is happening and I'll let you put it into your own words.
Point A is emitting a sound wave that travels down into the water and finds the ship (point B). The sound wave then bounces off the the ship and travels to a receiver that is located on the back of the ship (Point C). The ship then calculates the time from the emission of the wave to the reception of the wave and from there calculates the depth of the object.<span />
Answer:
2 m/s²
Explanation:
If changes speed by 2 meters per second each second means:
2 m/s²
Because it changes constantly it veloctity.
Remember the aceleration changes the velocity.