QUESTION 2 a) An object of mass 2 kg is launched at an angle of 30° above the ground with an initial speed of 40 m/s. Ne

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Question 2 A An Object Of Mass 2 Kg Is Launched At An Angle Of 30 Above The Ground With An Initial Speed Of 40 M S Ne 1 (41.85 KiB) Viewed 14 times

QUESTION 2 a) An object of mass 2 kg is launched at an angle of 30° above the ground with an initial speed of 40 m/s. Neglecting air resistance, calculate: i. the kinetic energy of the object when it is launched from the the ground. ii. the maximum height attained by the object. iii. the speed of the object when it is 12 m above the ground. b) According to a local scientist, a typical rain cloud at an altitude of 2 m will contain, on average, 3×107 kg of water vapour. Determine how many hours it would take a 2.5 kW pump to raise the same amount of water from the Earth's surface to the cloud's position. marks) c) In Figure 1, two forces F, and F, act on a 5 kg object that is initially at rest. If the magnitude of each force is 10 N, calculate the acceleration produced. F₂ 60.0⁰ (8 marks) Figure 1 F₁ (3 (4 marks)