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3 marksPotential Energy, Ep

CSEC Physics · May/June 2014 · Paper 2 · Question 2(b)(i)

A basketball of mass 0.44 kg was dropped vertically from rest at A, 12 m from the ground as seen in Figure 2. Calculate the gravitational potential energy of the ball at the point of release, A.

Calculate the gravitational potential energy of the ball at the point of release, A.

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Other parts of this question

  1. 2(a)(i)In Figure 1, indicate inside the bubbles, two equivalent derived units for the Joule.[2 marks]
  2. 2(a)(ii)Solar energy is one of the popular alternative sources of energy. State ONE application of solar energy.[1 mark]
  3. 2(a)(iii)State ONE advantage of using solar energy in the Caribbean.[1 mark]
  4. 2(a)(iv)A variety of alternative energy technologies are being used in the Caribbean and globally. Other than solar energy, complete Table 3 to show three other types…[3 marks]
  5. 2(b)(ii)Calculate the final velocity of the ball on reaching the ground 1.56 seconds later (assume no loss of energy as the ball falls).[3 marks]
  6. 2(b)(iii)Calculate the ball's momentum when it hits the ground. [Acceleration due to gravity, g, = 9.8 m s⁻²][2 marks]

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