NCERT Exemplar Class 12

Example 10 Find the vector joining the points P(2, 3, 0) and Q(– 1, – 2, – 4) directed from P to Q. – 4) directed from P to Q. 0) and Q(– 1 2 3% Example 10 Find the vector joining the points P(2 November 5, 2021 Category: Chapter 10 - Vector Algebra , [...]

Example 9 Write the direction ratio’s of the vector a = i + i – 2k and hence calculate its direction cosines. Example 9 Write the direction ratio’s of the vector a = i + i - 2k and hence calculate its direction cosines. November 5, 2021 Category: Chapter 10 - Vector Algebra , Maths [...]

Example 8 Find the unit vector in the direction of the sum of the vectors, a = 2i + 2j – 5k and b = 2i + 2j + 3k. a = 2i + 2j - 5k and b = 2i + 2j + 3k. Example 8 Find the unit vector in the direction of [...]

Example 7 Find a vector in the direction of vector a = i – 2j that has magnitude 7 units. Example 7 Find a vector in the direction of vector a = i - 2j that has magnitude 7 units. November 5, 2021 Category: Chapter 10 - Vector Algebra , Maths , NCERT Exemplar Class [...]

Example 6 Find unit vector in the direction of vector a = 2i + 3j + k Example 6 Find unit vector in the direction of vector a = 2i + 3j + k November 5, 2021 Category: Chapter 10 - Vector Algebra , Maths , NCERT Exemplar Class 12 ,

Example 5 Let a= i + 2j and b = 2i + j. Is IaI = IbI ? Are the vectors equal? Example 5 Let a= i + 2j and b = 2i + j. Is IaI = IbI ? Are the vectors equal? November 5, 2021 Category: Chapter 10 - Vector Algebra , Maths [...]

Example 4 Find the values of x, y and z so that the vectors a = xi + 2j + zk and b = 2i + yj + k are equal. Example 4 Find the values of x y and z so that the vectors a = xi + 2j + zk and b = [...]

Example 3 In Fig 10.5, which of the vectors are: (i) Collinear (ii) Equal (iii) Coinitial Example 3 In Fig 10.5 which of the vectors are: (i) Collinear (ii) Equal (iii) Coinitial November 5, 2021 Category: Chapter 10 - Vector Algebra , Maths , NCERT Exemplar Class 12 ,

Example 2 Classify the following measures as scalars and vectors. (i) 5 seconds (ii) 1000 cm^3 (iii) 10 Newton (iv) 30 km/hr (v) 10 g/cm^3 (vi) 20 m/s towards north Example 2 Classify the following measures as scalars and vectors. (i) 5 seconds (ii) 1000 cm^3 (iii) 10 Newton (iv) 30 km/hr (v) 10 g/cm^3 [...]

Example 1 Represent graphically a displacement of 40 km, 30° west of south. Example 1 Represent graphically a displacement of 40 km 30° west of south. November 5, 2021 Category: Chapter 10 - Vector Algebra , Maths , NCERT Exemplar Class 12 ,