How much work does it take to accelerate a 9.0 kg object from rest to 27 m/s? Group of answer choices

2200 J

6600 J

120 J

3300 J

0.33 J

The stopwatch used by a student to measure velocity of a pulse in a slinky was of least count 0.1 second. he stops the stopwatch when a pulse has made 3 journeys from one end to the other of the slinky. he finds the seconds hand to be at 52nd division. calculate the correct time noted by him.