Download App

Motion in a Plane — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysicsMotion in a Plane1 Mark
Question
Given a + b + c + d = 0, which of the following statements are correct:b + c must lie in the plane of a and d if a and d are not collinear, and in the line of a and d, if they are collinear?
✓

Answer

Correct.Explanation:
a + b + c + d = 0, a + (b + c) + d = 0, The resultant sum of the three vectors a, (b + c), and d can be zero only if (b + c) lie in a plane containing a and d, assuming that these three vectors are represented by the three sides of a triangle. If a and d are collinear, then it implies that the vector (b + c) is in the line of a and d. This implication holds only then the vector sum of all the vectors will be zero.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "1 Marks Question" from Motion in a Plane→Motion in a Plane — all question types→Physics STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Can the center of mass of an object be outside?
→
When a straight capillary tube is made to stand vertically in water then the water level in it is climbs up to 5 cm. Now if the capillary tube is tilted at an Angle of $45^{\circ} $ then to what height will the water rise from the liquid level?
→
In a dispersive medium, how will you express the velocity of wave motion?
→
Give an example of:
A physical quantity which has a unit but no dimensions.
→
When stationary waves can be generated?
→
What is the ratio of r.m.s. speed of oxygen and hydrogen molecules at the same temperature?
→
Comment on the following statement: the temperature of all the molecules in a sample of a gas is the same.
→
State the conditions when motion of a particle can be an SHM.
→
On winter nights, we feel warmer when clouds cover the sky than when the sky is clear. Why?
→
Why can an engine working under isothermal conditions produce no useful work?
→