A motorcycle‘s brake is designed to absorb 35 KJ/s. The motorcycle and rider have a mass of 280 KG and are travelling at 100km/h. How fast will they be going after 3 seconds of braking?[Solution plus Answer please]
Best to cut out and re-solder. You can buy connectors that will easily connect the section cut out adjacent to the hole. It is very important you buy the connector first so you will know the slip distance and from that you will know how wide a cut to make in your leaking pipe. Carefully prepare for the soldering - it is easy if you prepare properly. Be careful of fire while soldering - many buildings burn to the ground as a result of soldering/welding.
Yes if the pipe is completely dry. If the pipe can be drained , spot soldering will work. If steam continuously escapes from the hole when you heat it, it is best to cut pipe put in coupling as others have mentioned. Again ,the pipe must be dry. Old trick dad showed me, is to put a wad of damp white bread Into pipe upstream from new joint heat it w/ torch The bread hardens will stop water long enough to solder in coupling. When you turn pressure back ,on the bread dissolves. Watch your flame as mentioned , Good luck
100km/h 27.78m/s Energy transferred by brakes 35.0^3 J/s x 3.0s 105^3 J Original KE ? x 280kg x (27.78m/s)? 108^3 J Final KE (108 - 105)^3 3.0^3 J Final vel. V ?MV? 3.0^3 J V √(2 x 3.0^3 / 280) ?V 4.63 m/s
