The equation of motion of a missile is x = 3t, y = -4t, z = t where time 't' is in seconds and the distance is measured in kilometres.
If the position of rocket at a certain instant of time is (5, -8, 10), then what will be the height of the rocket from the ground? (Ground is considered as xy plane)
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 10 km
Height will be given by
$z=t$ (as xy plane is considered ground)
at position (5, -8, 10)
height → 10 units (km)