A. avr speed : vavr=Δs/Δt=5500/(35⋅60)=2.62 (m/s)
avr velocity: vavr=Δr/Δt=5500/(35⋅60)=2.62 (m/s)
avr speed : vavr=Δs/Δt=5500/(25⋅60)=3.67 (m/s)
avr velocity: vavr=Δr/Δt=5500/(25⋅60)=3.67 (m/s)
B. avr speed : vavr=Δs/Δt=2⋅5500/((35+25)⋅60)=3.06 (m/s)
avr velocity : vavr=Δr/Δt=0/((35+25)⋅60)=0 (m/s)
Comments
Leave a comment