Newton's Laws of Motion Questions
Given below are two statements: Statement I: To negotiate a curve on a horizontal road, cyclist bends inwards (towards centre of curvature). Statement II: Inward bending of the cyclist provides necessary centripetal acceleration to negotiate the turn
A block of weight W is supported by three strings as shown in figure. Which of the following relations is true for tension in the strings at static equilibrium? (Here T₁, T₂ and T₃ are the tension in the strings A, B and C respectively)
A block B is pushed momentarily along a horizontal surface with an initial velocity v. If μ is the coefficient of kinetic friction between block B and the surface, the block will come to rest after covering a distance: (g is acceleration due to gravi
Choose the option containing correct statements. A. Frictional force opposes the relative motion between the surfaces in contact. B. Limiting value of static friction force is directly proportional to normal reaction between the surfaces in contact.
Two masses of 10 kg and 20 kg respectively are connected by a massless spring as shown in figure. A force of 200 N acts on the 20 kg mass at the instant when the 10 kg mass has an acceleration of 12 ms⁻² towards right, the acceleration of the 20 kg m
Two particles each of mass m are moving in horizontal circle with same angular speed. If both string 1 and 2 are of same length, then the ratio of tension in string (T₁/T₂) is;
Two masses M₁ = 4 kg, M₂ = 12 kg are connected at the ends of an inextensible string passing over a frictionless fixed pulley as shown. When masses are released, then magnitude of acceleration of masses will be: (g is acceleration due to gravity)
A block of mass 10 kg is kept at rest on a fixed rough inclined plane with coefficient of friction μs = 0.6 and having angle of inclination 30°. The frictional force acting on the block is; (g = 10 m/s²)
A ball of mass 1 kg is moving with speed 20 m/s and collides with a smooth surface and returns with same speed as shown in figure. The magnitude of change in linear momentum of the ball will be:
A fireman wants to slide down a tight rope. The rope can bear a tension of 1/4th of the weight of the man. With what minimum acceleration should the fireman slide down? (g is acceleration due to gravity)
A person of mass m is standing in a lift on a weighing machine. Match the List-I with List-II and choose the correct option. List-I (Motion of the lift) (A) Lift starts moving upwards with acceleration g/2 (B) Lift starts moving downwards with accele
A constant force acts on a body of mass 0.9 kg which is initially at rest. If the body moves a distance of 225 m in 15 s, then the magnitude of the force is;
Figure shows a uniform rod of length 30 cm having mass 3 kg. The rod is pulled by constant forces of 49 N and 64 N as shown. Find the force exerted by 20 cm part of the rod on the 10 cm part at section A. (all surfaces are smooth)
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R: Assertion A: A car can move on a circular path of radius R with a speed v on a rough banked road where v is given by 0 ≤ v ≤ vmax and vmax = √[2gR((
A block of mass 5 kg is moving downwards on a fixed smooth inclined plane as shown in figure. The normal force on block will be: (take g = 10 m/s²)