Saved Bookmarks
| 1. |
A truck starts from rest and rolls down a hill with a constant acceleration. It travels a distance of 400 m in 20. Find its acceleration. Find the force acting on it if its mass is 7 tonnes. |
|
Answer» ata: Mass of STONE(m)=7000 KG DISTANCE(S)=400 meter Time(t)=20 second 1) We have to FIND the acceleration of the truck So from the equation of motion S= ut+1/2 at 2 , where u=0 S=1/2aX t2 a= 2×S/t2 = 2×400/20×20 =2m/ sec 2 2) Force acting on truck So, from newton's 2 nd law of motion F =ma=7000×2=14000N=14kN HOPE THIS WOULD HELP U!!!!!! MARK IT AS BRAINLIEST IF U WANT TOO!!!!! m |
|