1 thought on “Dofine one joule. A crane lift a load of 250N at the<br /> height of 60m in se 20 sec then, calculate<br />the power of the cranc”
Answer:
Joule, unit of work or energy in the International System of Units (SI); it is equal to the work done by a force of one newton acting through one metre. … In electrical terms, the joule equals one watt-second—i.e., the energy released in one second by a current of one ampere through a resistance of one ohm.
Answer:
Joule, unit of work or energy in the International System of Units (SI); it is equal to the work done by a force of one newton acting through one metre. … In electrical terms, the joule equals one watt-second—i.e., the energy released in one second by a current of one ampere through a resistance of one ohm.
Explanation:
250N x 60m = 1500J /20s =750 watt