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Laws of Motion Test - 5

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Laws of Motion Test - 5
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Weekly Quiz Competition
  • Question 1
    1 / -0
    What is the maximum height when the final velocity is zero?
  • Question 2
    1 / -0
    A force of 20 N acts on a body of mass 5 kg for 2 seconds initially at rest. Find velocity acquired by body and change in momentum of body.
  • Question 3
    1 / -0
    A crane pulls 5 boxes of mass 100 kg each attached to each other. The boxes are kept in a row horizontally. The crane exerts a force of 6000 N and the boxes offer a frictional force of 800 N. Find the accelerating force and the acceleration of the boxes. (mass of crane = 2000 kg)
  • Question 4
    1 / -0
    Find mass of the body if its initial mass is 5.3 kg and velocity is 1.2  108 m/sec
  • Question 5
    1 / -0
    A plant revolves around another planet at a distance of 1500 km. If their masses are 6.39  1026 kg and 2.36 1019 kg, final gravitational pull.
  • Question 6
    1 / -0
    What is the gravitational force of attraction Tom and John standing 20 m apart. (Given their masses are 40 kg and 70 kg and G = 6.7  10-11 Nm2/ kg2
  • Question 7
    1 / -0
    A force acts for 2 seconds on a body of mass 3 kg initially at rest. The force then ceases to act and the body moves through 5 m in the next one second. Find magnitude of force.
  • Question 8
    1 / -0
    A ball is hanging form a rigid support by a string. Given that mass of ball is 1 kg, find force exerted by block on string and that on the block (Take g = 10 m/sec2)
  • Question 9
    1 / -0
    Find force of gravity on dining table of mass 50 kg
  • Question 10
    1 / -0
    The two similar satellites revolve around earth in circular orbits. Given that radius of satellite I is less than radius of satellite II, which of the following is true?
  • Question 11
    1 / -0
    Which of the following factors does gravitational constant depends?
  • Question 12
    1 / -0
    A ball is released from the top of building and it reaches the ground in 5 seconds. What is height of building and the velocity with which the ball will strike the ground? (Take g = 10 m/sec2)
  • Question 13
    1 / -0
    A pasta was thrown from the ground surface, with a velocity of 5 m/sec and it got stuck on roof. Find the height between ground and roof.
  • Question 14
    1 / -0
    Which of the following relationships is correct?
  • Question 15
    1 / -0
    Find radius of a planet if its mass is 5.96  1224 kg.
    (where g = 9.8 m/sec2, G = 6.67  10-11 Nm2/ Kg2)
  • Question 16
    1 / -0
    The mass of an object is 5 kg and acceleration produced is 3 m/sec2 from first second to sixth second. Find change in momentum.
  • Question 17
    1 / -0
    Which of the following options is correct that truly tells about the properties of mass and weight?
    (1) It is a scalar quantity.
    (2) It is the force with which earth attracts the body.
    (3) It is measured by physical balance.
    (4) It is measured by beam balance.
  • Question 18
    1 / -0
    A train of mass 3  107 kg initially at rest is pulled by a force of 5  104 N through a distance of 3 m. Assume air resistance to be negligible, find speed of train.
  • Question 19
    1 / -0
    Given that mass of uranus is 8.74  1025 kg and that of mercury is 3.32  1027 kg. What is the gravitational force of attraction if the distance between them is x kilometers?
  • Question 20
    1 / -0
    Why does moon not fall and collide with Earth?
  • Question 21
    1 / -0
    Tom threw the ball vertically upwards with initial velocity of 10.2 m/sec. Find velocity with which it strike the ground and total time that it took to return to its initial position.
  • Question 22
    1 / -0
    What happens if the value of gravitational force of constant is very small in magnitude?
  • Question 23
    1 / -0
    Which of the following is correct value of G?
    (where G is gravitational constant)
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