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Motion In A Plane

Question

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Which of the following is/are true:
A.

1.) A particle moving towards east may have acceleration acting towards north.
B.

2.) A boy is moving towards left with a speed of 8 m/s and a man is moving with a speed of 13 m/s in same direction. The relative velocity of the boy w.r.t. man is 5 m/s left.
C.

3.) It is possible that the average velocity of the body is zero but the average speed is not zero.

Solution

A.
True
B. FALSE
C.
True

Some More Questions From Motion in A Plane Chapter

Give three examples of vector quantities.

What are the basic characteristics that a quantity must possess so that it may be a vector quantity?

Is a physical quantity, having a direction, necessarily a vector?

Name a quantity which is both scalar as well as vector.

Which of the followings is/are vector quantities: work, power, acceleration, mass, momentum?

Pick up the odd one from the following: force, linear momentum, mass, impulse.

Pick out the only vector quantities in the following list:
Temperature, pressure, impulse, time, power, total path length, energy, gravitational potential, coefficient of friction and charge.

Pick out the two scalar quantities in the following list:
force, angular momentum, work, current, linear momentum, electric field, average velocity, magnetic moment, reaction as per Newton’s third law, relative velocity.

What are polar vectors?

Give two examples of polar vectors.

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