The rear side of a truck is open and a box of 40 kg mass is placed 5 m away from the open end as shown in figure. The coefficient of friction between the box the surface below it is 0.15. On a straight road, the truck starts from rest and accelerates with 2ms^-2). At what distance from the starting point does the box fall from the truck ? (Ignore the size of the box.)

The rear side of a truck is open and a box of 40 kg mass is placed 5 m

1.	The rear side of a truck is open and a box of 40 kg mass is placed 5 m away from the open end as shown in figure. The coefficient of friction between the box the surface below it is 0.15. On a straight road, the truck starts from rest and accelerates with 2ms^-2). At what distance from the starting point does the box fall from the truck ? (Ignore the size of the box.)
Answer» 20 m 10m `SQRT(20)m` 5m Solution :`s=(1)/(2)at^(2), a^(1)=a-mug, t=sqrt((2L)/(a^(1)))`