Topic: Dynamics and Equilibrium Subtopic: Newton's laws of motion
Why fragile objects are packed inside polyethylene sheets?
Answer: Fragile objects such as glass wares are packed in polyethene sheets and Styrofoam rings because these materials provide large impact time during any mishap. An increase in impact time decreases the rate of change of momentum and hence lessens the impact of force which in turn decreases the damage caused due to accident.
- Why book placed on table stays there?
- What is pressure and units of pressure?
- What is zero error?
- Why heavier objects are difficult to move?
- When object is said to be moving with constant speed?
- How can express liters?