1st
People sitting in a moving bus experience a jerk when the bus stops. This is due to
When we kick a ball, force is exerted in
A person is standing in a bus. When the bus starts moving forward suddenly
The person moves backward
Which of the following is a contact force?
tension or magnetic force or force of attraction
tension
A body travels from A to B at 40m/s and from B to A at 60m/s. Calculate the average speed
48m/s
Inertia is defined as
Property of mass to change the motion
Other name for Newton's second law is
Law of Force and Acceleration or Law of Gravity and Acceleration
Law of Force and Acceleration
A swimmer pushes against the water, while the water pushes the swimmer
Which of the following is an example of contact force?
all of these
foundation for classical mechanics is laid by
Newton's Laws of Motion
When an object is at rest velocity and acceleration is zero
The unit of force is
Newton or Tesla or Pascal
Newton
Newton's third law of motion is associated with
What is the unit of force? newton or pascal
newton
Motion that repeats itself after certain intervals of time is known as which type of motion
Circular motion
First law of motion is also k
The sum of all forces acting on a body
Net force
Examples of Interaction Force Pair is
flying of butterfly
What is contact force?
force between touching objects
Equation of motion is applicable to
straight line motion
What causes the motion of a body which is initially in the state of rest
Force
What is the product of mass and velocity known as?
acceleration or momentum
momentum
When a moving bus suddenly stops, a person sitting will
Falls forward
Items we toss into the air gets back to earth, because of
gravitational force
In velocity-time graph, what does gradient of line represent?
velocity or acceleration or time taken
acceleration