CUET LEVEL I NEET Mock Test 8 (Physics)

A block of mass M is pulled along horizontal frictionless surface by a rope of mass M if a force P is applied at the free end of the row the force extered by the rope on the block is

• Pm/(m+m)

• Pm/(m-m)

• P

• Pm/(m+m)

The only force acting on 2.0 kg body as it moves along a positive X is an x component f_x =-6x with x in metres the velocity at x=3.0 m is 8.0 m/s the velocity of the body at x=4.0 m is

• 6.6m/s

• 46.6m/s

• 60 m/s

• 96.6 m/s

Which one of the following statements regarding Newton's first law of motion is incorrect

• It is an independent statement

• It defines an inertial frame of reference

• It was first initiated by Galileo

• It is a special case of Newton's second law

Toy car of mass 2.0 kg is moving towards negative y axis with the velocity of 0.5 m / S take a turn up to words x axis with velocity of 0.4 m / S how much is change in the liner momentum of the car due to turn

• (0.6i^- 1.0j^) kg m/s

• 0.8i^ +1.0j^) kg m/s

• 0.8i^ -1. 0^) kg m/s

• (0.8i^+0.6j^) kg m/s

Body of mass MS travelling with velocity U when a constant retarding force F is applied it comes to rest after travelling distance S1 if the initial velocity is to you with the same force if the distance travelled before it come to rest s2then

• S2=2s1

• S2=s1/2

• S2=s1

• S2=4s1

Block at rest slide down a smooth inclined plane which makes an angle 60⁰ with the vertical and it reaches the ground in T1 seconds another blockers dropped vertically from the same point and the reaches the ground in T2 seconds the ratio of T1:t2

• 1:2

• 2:1

• 1:3

• 1:√2

A particle of mass 2 kg is initially at rest force acts on it whose magnitude changes with time the force time graph is shown in figure the velocity of particle after 10 s is

• 20ms-1

• 10ms-1

• 75 ms-1

• 50ms-1

Rocket of mass 100 kg burns 0.1 kg of fuel fuel per second if the velocity of excused gays in 1 km then it lips with an acceleration of

• 1000 ms-1

• 100.s-1

• 10ms-1

• 1ms-2

A block of mass M is connected to another block of mass M by a spring massless of spring constant K the blogs or kept on your smooth horizontal plane initially the blogs are at rest at the spring is unstitched then constant on the block of mass M to pull it find the force on the block of mass

• Mf/(m+m)

• Mf/m

• (M+m) f/m

• Mf /(m+m)

A rod of length L and mass M is acted on by two unequal forces F1 and F2 as shown in the figure the tension in the rod at the distance why from the A is given by

• F[1-y/l]+f2[y/l]

• F2[1-y/l] +f1 [y/l]

• None of thesthese

• (F1-f2) y/l