(i) In order to protect the ship from rough weather, the captain decided to slow it down. So he dropped the storm jib and lashed heavy mooring rope in a loop across the stern. Then they double-fastened everything and went through their life-raft drill. They also attached lifelines and wore life jackets. Thus, they got ready to face the storm.
(ii) To check the flooding of water in the ship, he took a canvas and stretched it across the holes, and made a waterproof hatch cover across the gaping holes which diverted the water to the side. When the two hands pump blocked and the electric pump short-circuited, he found another electric pump, connected it to an out pipe, and started it.
| airship flagship lightship |
| take on sth: | to begin to have a particular quality or appearance; to assume sth |
| take sb on: | to employ sb; to engage sb to accept sb as one’s opponent in a game, contest or conflict |
| take sb/sth on: | to decide to do sth; to allow sth/sb to enter e.g. a bus, plane or ship; to take sth/sb on board |
Figure 8.9 shows the strain-stress curve for a given material. What are (a) Young’s modulus and (b) approximate yield strength for this material?

Two identical ball bearings in contact with each other and resting on a frictionless table are hit head-on by another ball bearing of the same mass moving initially with a speed V. If the collision is elastic, which of the following (Fig. 5.14) is a possible result after collision ?
