a)An object of mass 2 kg is launched at an angle of 30° above the ground with aninitial speed of 40 m/s. Neglecting air resistance, calculate:i.the kinetic energy of the object when it is launched from 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 willcontain, on average, 3x10' kg of water vapour. Determine how many hours itwould take a 2.5 kW pump to raise the same amount of water from the Earth'ssurface to the cloud's position.In Figure 1, two forces F1 and F2 act on a 5 kg object that is initially at rest. If themagnitude of each force is 10 N, calculate the acceleration produced.c)60.0°F1Figure 1

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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 ground. ii. the maximum height attained by the object. iii. the speed of the object when it is 12 m above the ground.

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 ground. ii. the maximum height attained by the object. iii. the speed of the object when it is 12 m above the ground.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter7: Conservation Of Energy

Section: Chapter Questions

Problem 21P: A 5.00-kg block is set into motion up an inclined plane with an initial speed of i = 8.00 m/s (Fig....

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