Question Answers

Find the directional cosines of vector (5i + 2j + 6k). Also write the value of sum of squares of directional cosines of this vector. Find the directional cosines of vector (5hati+2hatj+6hatk). Also write the value of sum of squares of directional cosines of this vector. August 26, 2020 Category: Uncategorised (JEE Advanced Physics by [...]

An inclined plane is inclined at theta with horizontal as shown in (figure).Write a unit vector in the direction parallel (hat(a)) and perpendicular (hat(b)) to inclined plane,in standard xy coordinate system. An inclined plane is inclined at theta with horizontal as shown in (figure).Write a unit vector in the direction parallel (hat(a)) and perpendicular (hat(b)) [...]

A car is moving with a speed of 10m s^(-1), If the east direction taken as x-axis and the north direction as y-axis . Write the velocity vector of car in unit vector notation.If it is moving (a) in the direction of N-E,(b) in the direction of N-W,(C ) in the direction ofS-W, and (d) [...]

A car is moving in direction vec(r) = -4 hat(i) + 3 hat(j) with a speed of 10 m/s^(-1). Write the velocity vector of car in unit vector notation. A car is moving in direction vec(r)=-4hat(i)+3hat(j) with a speed of 10m s^(-1). Write the velocity vector of car in unit vector notation. August 26, 2020 [...]

determine the vector which when added to the resultant of a = 3i – 5j + 7k determine the vector which when added to the resultant of a=3i-5j+7k August 26, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Given A = 0.3i + 0.4j + Ck, calculate the value of C if A is a unit vector. calculate the value of C if A is a unit vector. Given A=0.3i+0.4j+Ck August 26, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

find the unit vector of a + b where a=2i – j + 3k and b = 3i – 2j – 2k find the unit vector of a+b where a=2i-j+3k and b=3i-2j-2k August 26, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

find the unit vector of a = 2i + 3j + 2k find the unit vector of a=2i+3j+2k August 26, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

A man rows a boat with a speed of 18 km/hr in northwest direction. The shoeline makes an angle of 15^(@) south of west. Obtain the component of the velocity of the boat along the shoreline: A man rows a boat with a speed of 18 km/hr in northwest direction. The shoeline makes an angle [...]

An aeroplane takes off at an angle of 60 degree to the horizontal. If the velocity of the plane is 200km/h^−1, calculate its horizontal and vertical component of its velocity An aeroplane takes off at an angle of 60 o to the horizontal. If the velocity of the plane is 200kmh ^−1 calculate its horizontal [...]