MEDIUM
9th CBSE
IMPORTANT
Earn 100

What is the law of inertia? Name the scientist who first stated this law. Describe a simple experiment to demonstrate the inertia of rest.

Important Questions on Force and Laws of Motion

MEDIUM
9th CBSE
IMPORTANT
Physics>Chapter 2 - Force and Laws of Motion>EXAM PRACTICE QUESTIONS>Q 31

The speed-time graph of an object having a mass of 50 g moving along a straight line path is shown here. Find the force acting on the object.

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MEDIUM
9th CBSE
IMPORTANT
Physics>Chapter 2 - Force and Laws of Motion>EXAM PRACTICE QUESTIONS>Q 32
A body of mass 500 g is accelerated at 2 m s-2. Find the magnitude of the accelerating force.
EASY
9th CBSE
IMPORTANT
Physics>Chapter 2 - Force and Laws of Motion>EXAM PRACTICE QUESTIONS>Q 36
An object undergoes an acceleration of 8 m s-2 starting from rest. Find the distance travelled in one second.
HARD
9th CBSE
IMPORTANT
Physics>Chapter 2 - Force and Laws of Motion>EXAM PRACTICE QUESTIONS>Q 37
A 1000 kg vehicle moving with a speed of 10 ms is brought to rest in a distance of 50 m by the application of brakes. Calculate (a) its acceleration, (b) the force acting on the vehicle.
MEDIUM
9th CBSE
IMPORTANT
Physics>Chapter 2 - Force and Laws of Motion>EXAM PRACTICE QUESTIONS>Q 38
A ball weighing 500 g is thrown vertically upward with a speed of 10 ms. What will be its momentum (a) initially (b) at the highest point?
MEDIUM
9th CBSE
IMPORTANT
Physics>Chapter 2 - Force and Laws of Motion>PERIODIC TEST>Q (a)
Name the single force that can produce the same effect as by a number of forces collectively.
MEDIUM
9th CBSE
IMPORTANT
Physics>Chapter 2 - Force and Laws of Motion>PERIODIC TEST>Q (b)
Name the major application of Newton's first law of motion.
MEDIUM
9th CBSE
IMPORTANT
Physics>Chapter 2 - Force and Laws of Motion>PERIODIC TEST>Q (c)
What does a bowler tend to gain during running from a long distance before he bowls from the take-off-line?