Home
Class 11
PHYSICS
If vec(a) = 3m , vec(b) = 4 m how will...

If `vec(a) = 3m , vec(b) = 4 ` m how will you combine them to get a resultant vector of (a) 1m (b) 7m and (c ) 5m .

Text Solution

Verified by Experts

The correct Answer is:
(a) `vec(b)` is opposite and parallel to `vec(a)` (b) Both in the same direction (c ) `vec(a) and (b)` at right angles .
When `vec(a) and vec(b)` are at angles `R^(2) = a^(2) +b^(2) = 3^(2) +4^(2) , r= 5m.`
Promotional Banner

Topper's Solved these Questions

  • VECTORS SCALARS ELEMENTARY CALCULUS

    ICSE|Exercise FROM UNIT VECTORS COMPONENTS OF A VECTOR |6 Videos

  • VECTORS SCALARS ELEMENTARY CALCULUS

    ICSE|Exercise FROM SCALAR PRODUCT AND VECTOR PRODUCT |20 Videos

  • VECTORS SCALARS ELEMENTARY CALCULUS

    ICSE|Exercise VERY SHORT ANSWER QUESTIONS|10 Videos

  • UNITS

    ICSE|Exercise MODULE 3 (SELECTED PROBLEMS) |38 Videos

  • WAVES

    ICSE|Exercise From Musical Sound|10 Videos

Similar Questions

Explore conceptually related problems

If vec(a) = (1,-1) and vec(b) = (-2,m) are collinear vector, then m is equal to

If vec(a) is a non-zero vector and m is a non-zero scalar, then m vec(a) is a unit vector if

A man goes 24m due west and then 7m due north. How far is he from the starting point? (a) 31m (b) 17m (c) 25m (d) 26m

If vec(A) , vec(B) and vec(C ) are three vectors when you can say that vec(A) + vec(B) = vec(C ) and A+B = C are the same ?

how will you combine vec(E ) and vec(A) such that their vector sum is (i) vec(A) (ii) vec(E ) (iii) 2 vec(A)

If vec a is a vector and m is a scalar such that m vec a= vec0 , then what are the alternatives for m and vec a?

If vec a is a vector and m is a scalar such that m vec a= vec0 , then what are the alternatives for m and vec a?

vec(A) and vec(B) are two vectors such that vec(A) is 2 m long and is 60^(@) above the x - axis in the first quadrant vec(B) is 2 m long and is 60^(@) below the x - axis in the fourth quadrant . Draw diagram to show vec(a) + vec(B) , vec(A) - vec(B) and vec(B) -vec(A) (b) What is the magnitude and direction of vec(A) + vec(B) , vec(A) - vec(B) and vec(B) - vec(A)

Let vec(a) , vec(b) and vec(c) be three non-zero vectors such that no two of them are collinear and (vec(a)×vec(b))×vec(c)=1/3|vec(b)||vec(c)|vec(a) . If theta is the angle between vectors vec(b) and vec(c) , then the value of sintheta is: