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Motion In A Plane

Question
CBSEENPH11020360
Wired Faculty App

A particle has an initial velocity of 3 space stack straight i space with hat on top plus space 4 space stack straight j space with hat on top and an acceleration of It speed 0.4 space stack straight i space with hat on top plus space 0.3 space stack straight j space with hat on topafter 10 s

  • 10 units

  • 7 space square root of 2

  • 7 units

  • 8.5 units

Solution

B.

7 space square root of 2 straight V with rightwards arrow on top space equals straight u with rightwards arrow on top space plus straight a with rightwards arrow on top straight t straight V with rightwards arrow on top space space equals space left parenthesis 3 straight i with hat on top space plus 4 space straight j with hat on top right parenthesis space plus space 10 left parenthesis 0.4 space straight i with hat on top space plus 0.3 space straight j with hat on top right parenthesis straight V with rightwards arrow on top space equals 7 space straight i with hat on top space plus 7 straight j with hat on top space rightwards double arrow space vertical line straight V with rightwards arrow on top vertical line space equals space 7 square root of 2

Some More Questions From Motion in A Plane Chapter

What is a scalar quantity?

What is a vector quantity?

Give three examples of scalar quantities.

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.

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