Revision of Class 11 : Mech ; Heat ..posted on 07 june-15

For test on mechanics  click the link    https://www.dropbox.com/s/shi9lobrrqrbvnp/work%20power%2C..collision..doc?dl=

For another test on heat click  https://onedrive.live.com/redir?resid=AE768D305AF7EE75!248&authkey=!AKUpoOqHW-3Vizo&ithint=file%2cpdf