Engineering mechanics statistic problem solution, Cheat Sheet of Mechanics

Download Engineering mechanics statistic problem solution and more Cheat Sheet Mechanics in PDF only on Docsity!

Here is your answer Please read carefully: This tool was built to help students test their ability answering the problems, and thus I totally disclaim my responsibility for any unethical use of it. Question: Round off the following numbers to three significant figures: (a) 58 342 m, (b) 68.534 s, (c) 2553 N, and (d) 7555 kg. Answer: (a) Write the number which is stated in question. N=358342 m Convert the given number from m to km as follows: N =58342m 10% km m = 58.342 km As the number after 3 is less than 5 (here which is 4) so, it can be rounded as 58.3 km. Therefore, the required 3 significant number is : (b) Write the number which is stated in question. N = 68.534 s As the number after 5 is less than 5 (here which is 3) so, it can be rounded as 68.5 s. [sess], Therefore, the required 3 significant number is > (c)