Q3statements are true or false. Correct the false statements:
a) Displacement is a scalar quantity.
b) Work is a vector quantity.
Q4) Answer the following in detail:
1. What is speed? State its units and types? 2.What is velocity? State its units and types?
Answers
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Answer:
3.a) Ans) False
b) Ans) False
4.1) Ans) Speed is the ratio of distance covered by total time taken. SI unit is m/s . 2 types of speed first is uniform another is non - uniform speed.
2) Ans) Velocity is the ratio of distance covered in a "particular direction" by time taken. SI unit is m/s. Uniform and non uniform velocity.
Explanation:
Remember velocity of a body can be zero but speed cannot be zero.
Hope this will help you
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