Answer:
The block will be slide 0.36 m on the ice.
Explanation:
Given that,
Mass of arrow m₁= 80 g
Velocity of arrow u₁= 80 m/s
Mass of block m₂= 8.0 kg
Force F = 7.1 N
Using conservation of momentum
The work done is equal to the change in kinetic energy
We know that,
The work is defined as,
Hence, The block will be slide 0.36 m on the ice.
What? I don’t understand what your question is what are you referring to could you please explain it
Yes, because imagine a car, as it races it has a positive acceleration. So imagine the car going faster, and at the point it is at and imagine it slowing down. Compared to its previous speed is it a positive or negative acceleration (after it slowed down)?
Negative.
this is because its speed is decreasing. When anything is decreasing it is negative.
In other words its speed is decreaseing meaning its having a negative acceleration
slope= Force/Mass
force is measured in Newtons (N) and mass in kilograms (kg). This means that the units of the slope are N/kg. However a Newton is also equal to one kg*m/s2, so if we divide this by one kg we are left with a slope with units m/s2, which acceleration is measured in!
