A passenger arriving in a new town wishes to go from the station to a hotel located 10 km away on a straight road from the station. A dishonest cabman takes him along a circuitous path 23 km long and reaches the hotel in 28 min. What is (a) the average speed of the taxi, (b) the magnitude of average velocity? Are the two equal?
A vector has magnitude and direction. Does it have a location in space? Can it vary with time? Will two equal vectors a and b at different locations in space necessarily have identical physical effects? Give examples in support of your answer.
Read each statement below carefully and state with reasons, if it is true or false:
Three vectors not lying in a plane can never add up to give a null vector.
State, for each of the following physical quantities, if it is a scalar or a vector: volume, mass, speed, acceleration, density, number of moles, velocity, angular frequency, displacement, angular velocity.
Pick out the two scalar quantities in the following list: force, angular momentum, work, current, linear momentum, electric field, average velocity, magnetic moment, relative velocity.
- Motion in plane part 2 (Combination of Scalar)
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- Motion in plane part 11 (Position Vector)
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- Motion in plane part 12 (Position Vector and Displacement)
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- Motion in plane part 10 (Example Vectors)
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- Motion in plane part 8 (Example Vectors)
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- Motion in plane part 9 (Example Vectors)
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- Motion in plane part 3 (Combination of Vector)
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