A rock is launched at an initial angle of 440 relative to the ground , After 1.4 seconds the rock is observed to have a speed of 22 m.sec at an angle +180 above the horizontal. Neglecting air resistance ,with what initial speed was the rock launched?
please answer as soon as possible I Have a quiz out of 100 tomorow Thank you
please answer as soon as possible I Have a quiz out of 100 tomorow Thank you