[3 marks]Resultant of two forces
Two concurrent coplanar forces of magnitude 4 N and 9 N act on a particle. The angle between the two forces is 40 degrees. Find the magnitude of their resultant.
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A particle of mass 2 kg is held at rest on a rough horizontal table, connected by a light inextensible string which passes over a smooth pulley at the end of the table to a particle of mass 5 kg which hangs freely. The coefficient of friction between the 2 kg particle and the table is . The particles are released from rest.
Find, in terms of g, the acceleration of the particles.
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A particle of mass 2 kg is held at rest on a rough horizontal table, connected by a light inextensible string which passes over a smooth pulley at the end of the table to a particle of mass 5 kg which hangs freely. The coefficient of friction between the 2 kg particle and the table is . The particles are released from rest.
Find, in terms of g, the tension in the string.
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A particle of mass 2 kg is held at rest on a rough horizontal table, connected by a light inextensible string which passes over a smooth pulley at the end of the table to a particle of mass 5 kg which hangs freely. The coefficient of friction between the 2 kg particle and the table is . The particles are released from rest.
The tension in the string is . Find, in terms of g, the magnitude of the force exerted by the string on the pulley.
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A stone is thrown vertically upwards from a point T, 1 m above ground level, with a speed of 12 ms. Take ms.
Find the greatest height reached above its initial position.
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A stone is thrown vertically upwards from a point T, 1 m above ground level, with a speed of 12 ms. Take ms.
Find the time taken by the stone to reach its greatest height.
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A stone is thrown vertically upwards from a point T, 1 m above ground level, with a speed of 12 ms. Take ms.
The stone hits an obstacle and comes to an instantaneous rest 0,6 m before hitting the ground. Find the speed with which it hits the obstacle.
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A ball is projected at an angle of 30 degrees above the horizontal with a speed of 36 ms from a point 1,5 metres above the level ground. Take ms.
Find the greatest height reached above the point of projection.
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A ball is projected at an angle of 30 degrees above the horizontal with a speed of 36 ms from a point 1,5 metres above the level ground. Take ms.
Calculate the time taken by the ball to reach the ground.
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A ball is projected at an angle of 30 degrees above the horizontal with a speed of 36 ms from a point 1,5 metres above the level ground. Take ms.
Calculate the magnitude of the velocity with which the ball hits the ground.
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