मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान इयत्ता ११

Neglect the Effect of Rotation of the Earth. Suppose the Earth Suddenly Stops Attracting Objects Placed Near Its Surface. a Person Standing on the Surface of the Earth Will. - Physics

Advertisements
Advertisements

प्रश्न

Neglect the effect of rotation of the earth. Suppose the earth suddenly stops attracting objects placed near its surface. A person standing on the surface of the earth will.

पर्याय

  • fly up

  • slip along the surface

  • fly along a tangent to the earth's surface

  • remain standing

MCQ
Advertisements

उत्तर

remain standing

If the earth suddenly stops attracting objects placed near its surface, the net force on the person will become zero and according to the first law of motion, the person will remain standing.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 5: Newton's Laws of Motion - MCQ [पृष्ठ ७७]

APPEARS IN

एचसी वर्मा Concepts of Physics Vol. 1 [English] Class 11 and 12
पाठ 5 Newton's Laws of Motion
MCQ | Q 7 | पृष्ठ ७७

संबंधित प्रश्‍न

The driver of a three-wheeler moving with a speed of 36 km/h sees a child standing in the middle of the road and brings his vehicle to rest in 4.0 s just in time to save the child. What is the average retarding force on the vehicle? The mass of the three-wheeler is 400 kg and the mass of the driver is 65 kg.


What is the other name of Newton’s first law of motion ?


Fill in the following blank with suitable word :

Newton’s first law of motion is also called Galileo’s law of ………………………


State Newton’s first law of motion. Give two examples to illustrate Newton’s first law of motion.


It is sometimes heard that the inertial frame of reference is only an ideal concept and no such inertial frame actually exists. Comment.


The acceleration of a particle is zero, as measured from an inertial frame of reference. Can we conclude that no force acts on the particle? 


A force F1 acts on a particle accelerating it from rest to a velocity v. Force F1 is then replaced by F2 which decelerates the particle to rest.


A particle is found to be at rest when seen from a frame S1 and moving with constant velocity when seen from another frame S2. Mark out the possible options.
(a) Both the frames are inertial.
(b) Both the frames are non-inertial.
(c) S1 is inertial and S2 is non-inertial.
(d) S1 is non-inertial and S2 is inertial


A particle is observed from two frames S1 and S2. Frame S2 moves with respect to S1with an acceleration a. Let F1 and F2 be the pseudo forces on the particle when seen from S1 and S2, respectively. Which of the following is not possible?


A block of mass 2 kg placed on a long frictionless horizontal table is pulled horizontally by a constant force F. It is found to move 10 m in the first seconds. Find the magnitude of F.


A block of 2 kg is suspended from a ceiling by a massless spring of spring constant k = 100 N/m. What is the elongation of the spring? If another 1 kg is added to the block, what would be the further elongation?


'When a hanging carpet is beaten with a stick, the dust particles start coming out of it'. This phenomenon can be best explained by making use of :


A force of 600 dynes acts on a glass ball of mass 200 g for 12 s. If initially, the ball is at rest, find

  1. Final velocity
  2. Distance covered.

Classify the types of force based on their application.


In the above given problem if the lower thread is pulled with a jerk, what happens?


Two blocks A and B of masses m and 2 m, respectively, are held at rest such that the spring is in natural length. Find out the accelerations of both the blocks just after release.


A balloon has mass of 10 g in air. The air escapes from the balloon at a uniform rate with velocity 4.5 cm/s. If the balloon shrinks in 5 s completely. Then, the average force acting on that balloon will be (in dyne).


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×