C. On his fishing trip Justin takes the boat 12 km south. The fish aren’t biting so he goes 4 km west. He follows a school of fish 1 km north. Calculate
(i). the distance he covered and
(ii). his displacement also

the answer is b ) square root of 5

uranium fissions/breaks up giving out energy and neutrons

the total distance traveled by the car is

30km + 49km = 79 km .

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.