13. A car takes 5 hours to travel 842km. calculate for the average speed.
d= 842km
t= 5

A. 160 km/h
B. 168.4 km/h
C. 186 km/h
D. 186. 4 km/h


14. When refers to the speed of an object measured at particular time or instant?

A. speedometer
B. instantaneous speed
C. total speed
D. velocity


15. If the cyclist moves 30km in 2 hours, what is his calculated speed?
d=30km
t=2 h
v=?

A. 15km/h
B. 10km/h
C. 16km/h
D. 20km/h


16. A wave has a speed of 12 m/s and a period of 0.25s. What is a wavelength?

A. 0.25 m
B. 1.5 m
C. 3.0 m
D. 48 m


Please help me
:((​