A stone is tied to a string and swings with uniform motion in a horizontal circle. The string breaks and at a time t, the stone is displaced Deltar=3 hat(i)+4hat(j)-5hat(k) metres. (The positive z-axis is vertically up) Select the correct alternative.

A stone is tied to a string and swings with uniform motion in a horizo

1.	A stone is tied to a string and swings with uniform motion in a horizontal circle. The string breaks and at a time t, the stone is displaced Deltar=3 hat(i)+4hat(j)-5hat(k) metres. (The positive z-axis is vertically up) Select the correct alternative.
Answer» the time t is 1 s the time t is 0.5 s the SPEED of the stone while in CIRCULAR motion is 5 m/s the speed of the stone while in circular motion is `5 sqrt(2)m//s` ANSWER :A::C