Newton's Laws of Motion
 

Newton's Laws of Motion problem 26


Identify the correct and the incorrect statements in the list below:

  • A body moves with uniform acceleration if the force on the body increases uniformly with time.

  • A body moves with uniform deceleration if a constant force acts on the body in the opposite direction to its motion.

  • If the mass of a body is reduced twice at the same force, the acceleration is also reduced twice.

  • If the force acting on a body is ten times greater, the acceleration is also ten times greater.

  • If a ship is moving uniformly and in a straight line, a constant force is acting on it.

  • If a constant force acts on a body in the direction of motion, the body accelerates uniformly. If the force acts in the opposite direction, it decelerates uniformly.

  • If the force on a body changes over time, the motion is non-uniform.

  • If a car goes into a corner at a uniform speed, the resultant of the forces acting on the car is zero.

  • A stone is thrown vertically upwards. When it reaches its maximum height, just before it begins to fall down, it stops for a moment. At this point, the resultant of the forces acting on the stone is zero.


 

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