It may change the state of motion of an object.Forces are due to an interaction of at least two objects.When a balloon is filled with air its shape changes. By applying force on the plaster of Paris statues and models can be made. The shape of a sponge can be changed by applying force. the length of the spring can be changed by stretching or compressing. Next Topic: Law of Conservation of Momentum Science > Physics > Force > Simple Numerical Problems on ForceД®.g. Previous Topic: Applications of NewtonвЂ™s Laws Initial velocity = u = 10 m/s, Extra momentum = 1000 kg m/s, The engine of the car develops an extra linear momentum of 1000 kg m/s.Д¬alculate the new velocity with which the car runs. Given:В mass of body = m = 1000 kg, Force acting = F = 500 N,ДЇinal velocity = v = 0 ms-1, distance traveled = s = 64m.ДЄs the body is brought to rest a = вЂ“В 0.5 m/s 2ДЄns: Initial velocity = 8 m/s, time taken to come to rest = 16 sДЄ car of mass 1000 kg is moving uniformly with 10 m/s. Determine the force exerted by each sphere on If both areД«rought to rest in 0.1 seconds.

Of a table balance from a height of 40 cm and 10 cm respectively. Two spheres of mass 10 g and 100 g each fall on the two pans Given:В mass of block = m = 5 kg, Initial velocity = u = 0,Дistance traveled = s = 36 m, time taken = t = 3 s,Д«y NewtonвЂ™s second law of motion, the magnitude of force Kg at rest, if it moves 36 m, in first 3 seconds. в€ґ a = (v вЂ“ u)/t = (u/2 вЂ“ u)/5 = (-u/2)/5 = (-u/10)ДЇurther time required to stop the car is 10 sДЇind the magnitude of the force applied to a block of mass 5 N,time taken = t = 5 s, Final speed (v) = 1/2 Initial speed (u) = u/2 Given:В mass of car = m = 1000 kg, Force acting = F = 1000 Find the further time required to stop the car, if New momentum = Total Mass x VelocityВ = 1500 X 10 =ДЄns: The momentum of the truck after loading is 15000 kg m/s.ДЄ railway wagon of mass 1000 kg is pulled with a force ofДЄ car of mass 1000 kg is moving at a certain speed when aД¬onstant braking force 1000 N acts on it for 5 s and speed of the car reduced The truck is loaded on the way, hence its momentum should change.

The momentum of a body depends on its mass. Given: Mass of a truck = 1000 kg, Mass of Load = 500 kg, Speed of the vehicle = v = 36 km/hr = 36 x 5/18 = 10 m/s. Will the momentum of the truck remain the same after loading? if not, find the momentum of the truck after loading. It is loaded with 500 kg of material on its way and again moves at the same speed. Given:В Force acting = F = 2 N, time for which the force isД¬hange in momentum = F x tВ = 2 x 5 = 10 kgДЄns: the change in momentum is 10 kg m/s.ДЄn empty truck of mass 1000 kg is moving at a speed of 36 km/hr. M/s, Final velocity = v = вЂ“ 2m/s (negative since it is in opposite direction),ДЄ = (v вЂ“ u)/t = (-2 вЂ“ 10)/4 = -12/4 = -3 m/s 2ДЄ constant force of 2 N acts on a body for 5 seconds toД¬hange its velocity. Given:В mass of object = m = 10 kg, initial velocity = u = 10 A constant force acts on it for 4 s giving it a speed of 2 m/s in Given:В mass of cart = m = 600 kg, acceleration = a = 1.2 m/s 2.Д«y NewtonвЂ™s second law of motion, magnitude of forceДЄn object of mass 10 kg is moving with the initial velocity What is the magnitude of force exerted by a horse in pulling a cart of mass 600 kg and accelerating at the rate of 1.2 m/s 2? Thus the momentum of tortoise is more than that of the hare. The momentum of tortoise = Mass of tortoiseВ x Speed of The momentum of hare = Mass of hare x Speed of hare= 5 x 3 = The mass of theВ hare is 5 kg while that of tortoise is 20 The speed of a tortoise and hare are 1 m/s and 3 m/s

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