block a of mass 5kg is placed on a rough inclined plane and is connected to block b of mass 8kg by a light inextensible string, passing over a pulley as shown in the figure. black a moves up the inclined plane with an acceleration 2ms-2.
what is the tension in the string?
what is the friction between block a and the inclined plane?
- 1 十年前最愛解答
首先要分開畫free body diagram ,
for a, T-(mgsin30*+f)=ma
for b, mg-T=ma
sub T=64 into(1)
- CKLv 71 十年前
what is the angle between the inclined plane and horizontal. If no angle is specified. nobody can help you.
2006-11-25 18:11:59 補充：
It has a force component of mgsinθ along the inclined plane. It needs θ to do the calculations.