Question

Please answer the question 4

Answer 1

avg speed =tot distance/tot time

tot distance=2πr/4=2π cm

tot time=T/4 s

avg speed=2π/T/4=8π/T cm/s

avg velocity= tot displacement/tot time

tot displ=√2r=4√2 cm

tot time=T/4 s

avg vel=4√2/T /4=16√2/Tcm/s

the avg acc is zero(in magnitude) since speed is constant.