Answer:
a = 0m/s²
Explanation:
Average acceleration = (change in velocity)/(time it takes). Since the car's change in velocity is zero, its acceleration is zero.
Answer:
The vibrational frequency of the rope is 5 Hz.
Explanation:
Given;
number of complete oscillation of the rope, n = 20
time taken to make the oscillations, t = 4.00 s
The vibrational frequency of the rope is calculated as follows;

Therefore, the vibrational frequency of the rope is 5 Hz.
Answer:
<h2>320</h2>
Just use F =ma where m is mass and a is acc.
As we know that kinetic energy is given as

Here we can find the initial speed of puck A by momentum conservation



now here we will have initial kinetic energy of the mass is given as




now loss of energy is given as
