Answer:
v = 328.4
Explanation:
Data:
- Distance (d) = 785 m
- Time (t) = 2.39 s
- Velocity (v) = ?
Use formula:
Replace:
It divides:
What is the velocity?
The velocity is <u>328.4 meters per second.</u>
The potential energy is most often referred to as the "energy at rest" and is dependent on the elevation of an object. This can be calculated through the equation,
E = mgh
where E is the potential energy, m is the mass, g is the acceleration due to gravity, and h is the height. In this item, we are not given with the mass of the cart so we assume it to be m. The force is therefore,
E = m(9.8 m/s²)(0.5 m) = 4.9m
Hence, the potential energy is equal to 4.9m.
D I think is the correct answer
If the cylinder is slightly
Answer:
The moment of inertia of the wheel is 0.593 kg-m².
Explanation:
Given that,
Force = 82.0 N
Radius r = 0.150 m
Angular speed = 12.8 rev/s
Time = 3.88 s
We need to calculate the torque
Using formula of torque
Now, The angular acceleration
We need to calculate the moment of inertia
Using relation between torque and moment of inertia
Hence, The moment of inertia of the wheel is 0.593 kg-m².
Answer:
The force exerted by the cart on Bonnie is - 18.0 N
Explanation:
Given;
weight of the cart, w = 195 N
Bonnie's applied force on the cart, F = 18.0 N
According to Newton's 3rd law, action and reaction are equal and opposite.
Thus, the cart will pull back at Bonnie with force of equal magnitude but in opposite direction.
The force exerted by the cart on Bonnie = - 18.0 N
