This is due to the passengers reaction force on the boat which acts backwards.
sharon kalunda answered the question on September 30, 2019 at 06:58
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A trailer of mass 30 tonnes travelling at a velocity of 72km/h runs onto a stationary bus of mass 10 tonnes.The impact takes 0.5 seconds before the two vehicles move off together at a constant velocity for 15 seconds. Determine:
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iii) The impulsive force on the trailer on impact.
Date posted: September 30, 2019. Answers (1)
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Date posted: September 30, 2019. Answers (1)
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Date posted: September 30, 2019. Answers (1)
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Date posted: September 30, 2019. Answers (1)
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Date posted: September 30, 2019. Answers (1)
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Date posted: September 30, 2019. Answers (1)
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Date posted: September 30, 2019. Answers (1)
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Date posted: September 30, 2019. Answers (1)
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Date posted: September 30, 2019. Answers (1)
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Date posted: September 30, 2019. Answers (1)
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Date posted: September 27, 2019. Answers (1)
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Briefly suggest two conclusions that may be drawn from the experiment.
Date posted: September 27, 2019. Answers (1)
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Date posted: September 27, 2019. Answers (1)
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A load was raised using the system shown below. The system was then modified as in (b) and used to raise the same load.
State and explain the change in efficiency
Date posted: September 27, 2019. Answers (1)
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Date posted: September 27, 2019. Answers (1)
- To what temperature must 2,000cm3 of a gas at 27oC be heated at constant pressure in order for its volume to increase to 25000cm3?(Solved)
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Date posted: September 27, 2019. Answers (1)
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The stability of a body can be increased by increasing the base area and lowering its centre of gravity. State one way of lowering its centre of gravity.
Date posted: September 27, 2019. Answers (1)
- A steel sphere released in a tall transparent water jar attains a constant velocity after a while. The same sphere released in air falls at...(Solved)
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Date posted: September 27, 2019. Answers (1)
- A transformer with 6000 turns in the primary circuit and 300 turns in the secondary circuit has its primary circuit connected to a 400V a.c....(Solved)
A transformer with 6000 turns in the primary circuit and 300 turns in the secondary circuit has its primary circuit connected to a 400V a.c. source. A heater connected to the secondary circuit produces heat at the rate of 600W. Assuming that the transformer is 100% efficient determine:-
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ii). The current in the primary circuit.
iii). The current in the secondary circuit.
Date posted: September 27, 2019. Answers (1)
- The figure below shows two adjacent solids of materials Diamond and Ruby.(Solved)
The figure below shows two adjacent solids of materials Diamond and Ruby.
The refractive index of Diamond is 2.4 and that of Ruby is 1.75.
(i) Find the refractive index of Ruby with respect to diamond.
(ii) Draw an accurate ray from diamond such that no light is incident on the screen.
Date posted: September 27, 2019. Answers (1)