RBAS

This page lists questions and answers that were posted by visitors named RBAS.

Questions

The following questions were asked by visitors named RBAS.

Power of a car weighing 1200kg is 134.05hp and its efficiency is 90%. How long will it take to raise of the car to 20m/s from rest. solution:v2=u2+2as 400=2as as=200 real power=13.05hp =100001.3W effective power=90001.17W Power=W/t =mas/t =1200*200/t t=90...

Answers

The following answers were posted by visitors named RBAS.

P= mas here, m=mass a=accleration s=distance

Let side of square be=l Given, perimeter=36 ATQ 4l=36 l=36/4 l=9 i.e length of square garden is 9 so the number is=9*2 =18 Ans:18

1/4+1/3+1/2+7/12+3/4+5/6+1 =(3+4+6+7+9+10+12)/12 =51/12 =17/4 =4 1/4

sorry that was a mistake in typing but the calculation is okay