Answer :
Answer: 25m/s
Explanation:
[tex]S1=(2u+v)t \\ =20×20=400m \\ S2=40×20=800m \\ S3=(2u+v)t \\ =20×40=800m \\
Total \: displacement =2000 m
\\ Total \: time \: taken =80 m \\
V=802000=25m/s
[/tex]
Answer: 25m/s
Explanation:
[tex]S1=(2u+v)t \\ =20×20=400m \\ S2=40×20=800m \\ S3=(2u+v)t \\ =20×40=800m \\
Total \: displacement =2000 m
\\ Total \: time \: taken =80 m \\
V=802000=25m/s
[/tex]