Answer:


Explanation:
Given values
Mass (m) = 2kg
K = 400 N/M
Compressing it 0.3 m
<u>The law of conservation of energy</u>:


Energy of the spring deformation.
M mass of the block
x spring deformation
Therefore, if block left the spring (x = 0)

Where, Δl is initial spring deformation





<u>The law of conservation of energy</u>:

Where h is height


Cancel mass "m" each side

Distance along incline equals





Answer:
Coulomb Force
Explanation:
Coulomb force, also called electrostatic force or Coulomb interaction, attraction or repulsion of particles or objects because of their electric charge.
His power output was 3 Watt (360 Joule/120 seconds). The power output can be calculated by dividing the quantity of work by the amount of second needed for the activity and also by multiplying the force amount with the velocity of the activity. The power output usually used for measuring the ability of machine for doing its job.
Explanation :
Static friction is the frictional force between two objects that are at rest. While sliding friction is the frictional force between two objects in contact and are sliding w.r.t each other.
Static friction is usually greater than sliding friction because in static friction the contact forces is more and the interlocking between objects is tight as compared to sliding friction.