Total distance travelled = 20 + 100 = 120 m
Total time taken = 10 +30 +30 =50 s
The average speed = 120/50 = 2.4 m/s
joseph rimiru answered the question on November 23, 2017 at 18:21
- What is meant by the following terms: a. displacement b. speed c. average speed(Solved)
What is meant by the following terms:
a. displacement
b. speed
c. average speed
Date posted: November 23, 2017. Answers (1)
- The study of motion is divided into two parts. Name them(Solved)
The study of motion is divided into two parts. Name them
Date posted: November 23, 2017. Answers (1)
- State any two errors that are likely to be encountered with using a metre rule to measure length.(Solved)
This is under Measurement.
Date posted: November 21, 2017. Answers (1)
- Give reasons why mercury is prefered to water as a barometric liquid.(Solved)
This is under Measurement of Pressure.
Date posted: November 21, 2017. Answers (1)
- What are the disadvantages of using alcohol as a thermometric liquid?(Solved)
This is under thermal expansion.
Date posted: November 21, 2017. Answers (1)
- Name the branches of Physics.(Solved)
This is under Introduction to Physics.
Date posted: November 21, 2017. Answers (1)
- State three ways in which an electromagnet could be made more powerful.(Solved)
This is under electricity and magnetism.
Date posted: November 21, 2017. Answers (1)
- Explain why the feet feel colder when a person stands on a cemented floor than when on a wooden floor.(Solved)
This is under Heat transfer.
Date posted: November 21, 2017. Answers (1)
- Explain why luggage compartments are situated in the lower parts of buses.(Solved)
This is under equilibrium and center of gravity.
Date posted: November 21, 2017. Answers (1)
- Explain why a glass window soon becomes dusty when wiped dry with a dry cloth on a dry day.(Solved)
This is under Electrostatics.
Date posted: November 21, 2017. Answers (1)
- Explain how heat loss through conduction and radiation is minimized in a vacuum flask(Solved)
Explain how heat loss through conduction and radiation is minimized in a vacuum flask.
Date posted: November 21, 2017. Answers (1)
- When a brush is in water,the bristles spread but when it is taken out of water, the bristles cling together. Explain(Solved)
When a brush is in water,the bristles spread but when it is taken out of water, the bristles cling together. Explain.
Date posted: November 21, 2017. Answers (1)
- State three properties of solids whose density can be measured using the density bottle(Solved)
State three properties of solids whose density can be measured using the density bottle.
Date posted: November 21, 2017. Answers (1)
- Explain how temperature affects surface tension.(Solved)
Explain how temperature affects surface tension.
Date posted: November 21, 2017. Answers (1)
- State the limitations of a pinhole camera(Solved)
State the limitations of a pinhole camera.
Date posted: November 21, 2017. Answers (1)
- State the characteristics of Fermi-Dirac Statistics(Solved)
State the characteristics of Fermi-Dirac Statistics
Date posted: November 20, 2017. Answers (1)
- Give the two basic Assumptions of The Debye Theory of specific Heat.(Solved)
Give the two basic Assumptions of The Debye Theory of specific Heat.
Date posted: November 20, 2017. Answers (1)
- Give the three basic assumptions of Drude's theory of metals.(Solved)
Give the three basic assumptions of Drude's theory of metals.
Date posted: November 20, 2017. Answers (1)
- Discuss the free electron theory.(Solved)
Discuss the free electron theory.
Date posted: November 20, 2017. Answers (1)
- Give the characteristics of Bose-Einstein Statistics(Solved)
Give the characteristics of Bose-Einstein Statistics
Date posted: November 20, 2017. Answers (1)