Quantcast

Stuck

BeMo Free Repeat™ On Us + MCAT 520 Challenge™
This forum made possible through the generous support of SDN members, donors, and sponsors. Thank you.

caveman721

Full Member
7+ Year Member
Joined
Mar 1, 2010
Messages
76
Reaction score
19
Please can you answer as well and explain thank you.

Two boxes (24 kg and 62 kg) are being pushed across a horizontal frictionless surface, as the drawing shows. The pushing force of 43 N is horizontal and is applied to the 24-kg box, which in turn pushes against the 62-kg box. Find the magnitude of the force F that the 24-kg box applies to the 62-kg box.
 

Pisiform

Oh Crap!!!
10+ Year Member
Joined
Nov 27, 2009
Messages
1,182
Reaction score
370
Fnet = ma

43 = (24+62)a
a = 0.5

^^^ As the same force is applied to both boxes (and they are stick together) they would move with same acceleration.

Now, the force exerted by 24kg box on 62kg box is the same as the force exerted by 62kg box on 24kg box:

F = ma
= 62 * 0.5 = 31N
 

Similar threads

Top