A. 20m
B. 40m
C. 80m
D. 160m

Correct Answer: Option C

C. 80m

Explanation

H = ½gt²

½×10×4²=80

SEE ALSO  A plane inclined at 30o to the horizontal has an efficiency of 50%. Calculate the force parallel to the plane required to push a load of 120N uniformly on the plane

Copyright warnings! Do not copy.