31. A body having a mass 100 gram is allowed to fall freely from a height 1000 m under the action of
gravity. Its kinetic energy after 10 seconds is (take
= 1000 cm/sec)
(a) 5 joules
(b) 50 joules
(c) 500 joules
(d) 5000 joules

Pls give step by step ans​

World class speed skaters can skate a 3,000-m course in about 4 minutes.what is their average speed for this course? a. 12.5 m/sb. 1.33 m/sc. 1.25 m/sd. 13.3 m/s

Gather reliable information to brent make his decision. to gather this information, use newspapers, call insurance companies or look at their web sites, and review consumer magazines and web sites. also, look at the manufacturer web site or for information about gas mileage. list the sources you use and take notes.

The dot diagram represents the motion of the motorcycle as it moves from left to right