Question

Q #6: Three persons wants to push a wheel cart in the direction marked x in Fig.
The two person push with horizontal forces F1 and F2 as shown in the figure.
F1 = 45 N
700
20°
F2
75 N
(a) Find the magnitude and direction of the force that third person should exert to stop
this cart. You can ignore the effects of friction.
(b) If the third person exerts the force found in part (a), the cart accelerates at 200 m/s2 in
the (+) x-direction. What is the weight of the cart?​

Answer 1

Answer:

a)120Newtons

b)3/5kg =600gm

Explanation:

F3 = Sum of F1 and F2

Weight =Force / Acceleration