Attempt the following sub questions.
1) Clarify the differences – Distance and Displacement
2) Write any three gadgets or devices which are based on the principles of Newton’s law of
motion
3) Write the unit in SI system for distance, Velocity and acceleration
4) An object moves 18 m in the first 3 s, 22 m in the next 3 s and 14 m in the last 3 s. What is
its average speed?
5) Write the statement for law of conservation of energy.
6) If an object has 0 momentum, does it have kinetic energy?
7) Write the formula for Power. Write its unit used in industrial sector.
8) Explain the difference between potential energy and kinetic energy.
Answers
1. distance- it is the total path length.
Distance is a scalar quantity that refers to "how much ground an object has covered" during its motion. Displacement is a vector quantity that refers to the shortest path during it's motion.
2. The gadgets are wheels and levers, elevators or lifts and gym equipments.
3. distance- m
velocity-m/s
acceleration- m/s^2
4. the average speed is 6 m/s
5. This law states that energy can neither be created nor destroyed; rather, it can only be transformed or transferred from one form to another. For instance, chemical energy is converted to kinetic energy when a stick of dynamite explodes.
6. Yes, it's kinetic energy will also be zero.
7. Power is equal to work done upon time
p= W/t
it's unit in industrial sector is horsepower (hp)
please mark my answer as brainliest.