How do you find the question mark for the part of the force exerted on the stone? The answer should include other variables

Question

ball = sphere ( pos=vec(-2,1,0 ), m = 0.5 , alpha = 0*pi/180,#alpha = angle

radius=0.02, color=color.red, make_trail=True, trail_type='points') #,interval=50,retain=50)

ball.v = vec( 1, sin(ball.alpha), 0) #ball's velocity

ball.p = ball.m * ball.v #ball's momentum

stone = sphere ( pos=vec(-2,1.01,0 ), m = 0.5 , alpha = 0*pi/180,#

radius=0.02, color=color.blue, make_trail=True)

stone.v = vec( 1, sin(stone.alpha), 0)

stone.p = stone.m * stone.v

#x component of velocity vs time graph

vx = graph(title=' Velocity ', xtitle=' t ', ytitle=' v_x (t) ')

vx_b = gcurve(graph=vx, color=color.red) # a graphics curve

vx_s = gcurve(graph=vx, color=color.blue)

#y component of velocity vs time graph

vy = graph(title=' Velocity ', xtitle=' t ', ytitle=' v_y (t) ')

vy_b = gcurve(graph=vy, color=color.red) # a graphics curve

vy_s = gcurve(graph=vy, color=color.blue)

myrate = 1000

g = 0.2

mu = 0.05

t = 0

dt = 0.001

while ball.pos.x < 2 :

rate(myrate)

#force exerted on the ball

F_b = vec(500,0,0)

ball.p = ball.p + F_b*dt

ball.v = ball.p/ball.m

ball.pos = ball.pos + ball.v * dt

#force exerted on the stone

F_s = stone.m*vec(0,-g,0) - ? * stone.v.mag * stone.v.hat

stone.p = stone.p + F_s*dt

stone.v = stone.p/stone.m

stone.pos = stone.pos + stone.v * dt

vx_b.plot(pos=(t,ball.v.x))

vx_s.plot(pos=(t,stone.v.x))

vy_b.plot(pos=(t,ball.v.y))

vy_s.plot(pos=(t,stone.v.y))

t = t+dt

How do you find the question mark for the part of the force exerted on the stone? The answer should include other variables

Answer 1

Hello Lauren,

I am not able to understand what this question reads.

pl resend the contents and I will certainly solve it.