A car is travelling on a highway at a speed of 25 m/s along the x-axis. A passenger in a car throws a ball at an angle 37∘ with horizontal in a plane perpendicular the motion of the car. The ball is projected with a speed of 10 m/s relative to the car. What may be the initial velocity of the ball in unit vector notation?
ux = 25^i as the car is moving with a speed of 25 ms along +ve axis, given θ = 37∘
∴uyuz = tan 37∘ = 34
∴ the only possible option is 25 ^i + 6^j + 8^k.