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Sahay Sir > Question Answers > Arihant Physics by D.C Pandey > Volume 1 > Chapter 5 - Laws of Motion > A block of mass m slides m slides down a smooth incline of angle of inclination θ. The force acting on it are N (normal reaction). And mg (weight). The acceleration of the block is α. Two students analyze the situation and apply Newton a second law. First studentmgsinθ=ma second student−Ncosθ=masinθ

A block of mass m slides m slides down a smooth incline of angle of inclination θ. The force acting on it are N (normal reaction). And mg (weight). The acceleration of the block is α. Two students analyze the situation and apply Newton a second law. First studentmgsinθ=ma second student−Ncosθ=masinθ

A block is projected upwards on a rough inclined plane at 20 m/s. let the time in going up then t is equal to