Question

Question: 4

a) What is the work done if a force of 10 N moves a body through a distance of 5m?

b) A bike travelling with an initial velocity ‘u’ uniformly decelerates to a velocity of 40 km/h
in 20 seconds. The rate of deceleration is 2.5 m/s2

. What would be the value of ‘u’?

c) Calculate the mass of spherical object whose radius is 3 cm. The density of the object is
2g/cm3
. ​

Answer 1

Answer:

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Explanation:

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