i) V = u + at.
ii) V2 = u2 +2as
iii) S = ut + ½ at2.
sharon kalunda answered the question on April 4, 2019 at 07:51
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He takes 0.5 s before applying the brakes which brings the...(Solved)
A car is traveling uniformly at 100km/hr when the driver observes a road block ahead.
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Date posted: April 4, 2019. Answers (1)
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Date posted: April 4, 2019. Answers (1)
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Date posted: April 4, 2019. Answers (1)
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Date posted: April 4, 2019. Answers (1)
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Determine(Solved)
A parcel is to be dropped from an aeroplane traveling horizontally at 120m/s, at an altitude
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Date posted: April 4, 2019. Answers (1)
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Date posted: April 4, 2019. Answers (1)
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Date posted: April 4, 2019. Answers (1)
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Date posted: April 4, 2019. Answers (1)
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Date posted: April 4, 2019. Answers (1)
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The velocity-time graph in the figure below illustrates the motion of a ball which has been projected vertically upwards from the surface of the moon. The weight of the object on earth’s surface is 20N, when the acceleration due to gravity is 10ms-2.
(i) State why the velocity becomes negative after 3seconds.
(ii) Determine the acceleration of free fall on the moon showing clearly your work
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Date posted: April 4, 2019. Answers (1)
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Figure below shows a car with a dummy driver before and after a collision test:
The mass of the dummy driver is 90kg. The impact time to reduce the dummy’s speed from
45m/s to zero is 1.2 seconds:
(i) Calculate the average force on the dummy during impact
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Date posted: April 4, 2019. Answers (1)
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The figure below shows a uniform bar of length 1.0m pivoted near one end. The bar is kept in equilibrium by a spring balance as shown:
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Date posted: April 4, 2019. Answers (1)
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The diagram below shows a ball being whirled in a vertical plane.
Date posted: April 4, 2019. Answers (1)
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The diagram below shows a velocity – time graph of a certain motion.
From the graph, determine the average speed of the body.
Date posted: April 4, 2019. Answers (1)
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A bullet of mass 150g moving at an initial velocity of 80m/s strikes a suspended block
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Date posted: April 4, 2019. Answers (1)
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Explain this observation(Solved)
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Explain this observation
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upwards from the ground and is allowed to bounce...(Solved)
The graph below shows a part of the motion of a basket ball which is projected vertically
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I.AB II.BC III.CE
ii) From the graph calculate the acceleration due to gravity
Date posted: April 4, 2019. Answers (1)
- The figure below shows a section of a ticker tape. The dots were made at a frequency of 50 Hz.
Determine the acceleration of the trolley...(Solved)
The figure below shows a section of a ticker tape. The dots were made at a frequency of 50 Hz.
Determine the acceleration of the trolley pulling the tape.
Date posted: April 4, 2019. Answers (1)
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Date posted: April 4, 2019. Answers (1)
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has a length of 17...(Solved)
When a load of 20N is hung from a spring, the spring has a length of 15 cm. The same spring
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Date posted: April 4, 2019. Answers (1)