![]() Give the magnitude and direction of the net force acting on a stone of mass 0.1 kg,Ī. This component of velocity produces no effect on the net force acting on the pebble. However, the pebble will have the horizontal component of velocity throughout its motion. At the highest point, only the vertical component of velocity becomes zero. If the pebble is thrown at an angle of 45° with the horizontal direction, it will have both the horizontal and vertical components of velocity. The net force on the pebble in all three cases is 0.5 N and this force acts in the downward direction. Its magnitude is given by Newton’s second law of motion as: The gravitational force is the only force that acts on the pebble in all three cases. Do your answers change if the pebble was thrown at an angle of 45° with the horizontal direction?Ġ.5 N, in vertically downward direction, in all casesĪcceleration due to gravity, irrespective of the direction of motion of an object, always acts downward. at the highest point where it is momentarily at rest. Give the direction and magnitude of the net force on the pebble,Ĭ. A pebble of mass 0.05 kg is thrown vertically upwards. As the high speed electron in space is far away from all gravitating objects and free of electric and magnetic fields, the net force on electron is 0. But as velocity of the car is constant, its accleleration, a = 0. Force is being applied to overcome the force of friction. As the kite is held stationery, in accordance with the first law of motion, the net force on the kite is 0.ĭ. Therefore, the net force on the cork is 0.Ĭ. As the cork is floating on water, its weight is balanced by the upthrust due to water. As the rain drop is flling with a constant speed, its accleration, a = 0. a high-speed electron in space far from all material objects, and free of electric and magnetic fields.Ī. a car moving with a constant velocity of 30 km/h on a rough road,Į. a kite skillfully held stationary in the sky,ĭ. a drop of rain falling down with a constant speed,ī. Give the magnitude and direction of the net force acting onĪ. You can download NCERT solution of all chapters from Physics Wallah in PDF. NCERT Solutions for class-11 Physics Chapter 5 Laws of Motion is prepared by our senior and renowned teachers of Physics Wallah primary focus while solving these questions of class-11 in NCERT textbook, also do read theory of this Chapter 5 Laws of Motion while going before solving the NCERT questions. NCERT Solutions for Class 11 Physics chapter-5 Laws of Motion
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