Speed is the secular unit, which means it only measures "how fast it goes."
Velocity is a victory unit, which means it measures "both how fast it goes AND the direction."
Acceleration is the change of velocity over time.
Gamma rays transmit more energy than visible light rays because they possess a greater frequency
E = h x frequency
they are directly proportional
Answer:
Explanation:
Given
First bicycle travels 6.10 km due to east in 0.21 h
Suppose its position vector is 
After that it travels 11.30 km at 
east of north in 0.560 h
suppose its position vector is 
after that he finally travel 6.10 km due to east in 0.21 h
suppose its position vector is 
so position of final position is given by
t=0.21+0.56+0.21=0.98 h
For direction
w.r.t to x axis
It caused the balloons to turn into physical energy
