The graph in the figure shows the x component of the acceleration of a 2.4-kg object as a function of time (in ms). (a) At what time(s) does the x component of the net force on the object reach its maximum magnitude? (a) What is the maximum magnitude of the x component of the net force on the object? (b) What is the x component of the net force on the object at time t= 0 ms and at t=4 ms? (m/s}- > (ms) 10 20

The graph in the figure shows the x component of the acceleration of a 2.4-kg object as a function of time (in ms).  (a) At what time(s) does the x component of the net force on the object reaches its maximum magnitude? (a) What is the maximum magnitude of the x component of the net force on the object? (b) What is the x component of the net force on the object at time t = 0 ms and at t = 4 ms?

You drop an object of mass m from a tall building. Suppose the only forces affecting its motion are gravity, and air resistance proportional to the object's speed with positive constant of proportionality k. Let g denote gravitational acceleration (a positive constant). Express the total force in terms of m, g, and the object's velocity v, where upward displacement is considered positive. F = mg - kv Newton's second law tells us that force is equal to mass x acceleration, F = ma. Relating acceleration to velocity, rewrite the equation for total force above as a first order differential equation for v as a function of t. Denote v' as dv dt v(t) m(- dr) this is not an equation. Solve this differential equation for v(t) with the initial condition v(0) = V0. = mg (1-e ==) m k Find the terminal Terminal velocity = mg k X velocity. X syntax error: X X

A 15 kg monkey climbs up a massless rope that runs over a frictionless tree limb and back down to a 21 kg package on the ground (see the figure). (a) What is the magnitude of the least acceleration the monkey must have if it is to lift the package off the ground? If, after the package has been lifted, the monkey stops its climb and holds onto the rope, what are (b) the magnitude and the direction of the monkey's acceleration (choosing the positive direction up), and (c) what is the tension in the rope? Bananan (a) Number Units (b) Number Units Units (c) Number

A 18 kg monkey climbs up a massless rope that runs over a frictionless tree limb and back down to a 25 kg package on the ground (see the figure). (a) What is the magnitude of the least acceleration the monkey must have if it is to lift the package off the ground? If, after the package has been lifted, the monkey stops its climb and holds onto the rope, what are (b) the magnitude and the direction of the monkey's acceleration (choosing the positive direction up), and (c) what is the tension in the rope? Bananas

A box of mass 7.3 kg is slid along the floor. The initial speed of the box is 6 m/s and it comes to rest after 8.5 m. What was the magnitude of the force of friction acting on the box during this motion?

A particle of mass 1.0 kg is subjected to a force Fiz = -3.0N and a second force of F2 = 14.0N.Calculate the magnitude of the acceleration, in m/s, of the particle. Use two significant digits please.

Two   blocks  are  connected  via  a  pulley,  both  blocks  have  a  mass  of  10.kg.  One  block  rests  on  a  horizontal  surface and  the  other  one hangs  freely by  a  cord which  passes over  a  pulley.  Assume  the  cord  does not  stretch, ignore  mass  of  pulley  and  cord,  therefore  acceleration  is  the  same  for  both  blocks  and  tension  is  the  same  for  both  blocks.  The  hanging  block  moves  down so  the  block  lying on  the  horizontal  surface  moves  to  the  right. What  is  the  acceleration (m/s^2) of  the  blocks  if  the coefficient of  friction  between  the  block  and  the   surface  is   0.50.

a block of mass m = 10.2 kg sitting on a ramp that makes an angle θ = 21° with the horizontal. This block is being pushed by a horizontal force F = 212 N. The coefficient of kinetic friction between the two surfaces is μ = 0.49. Write an equation for the acceleration of the block up the ramp using variables from the problem statement together with g for the acceleration due to gravity.  Find the acceleration of the block up the ramp in m/s2.

A 10 kg monkey climbs up a massless rope that runs over a frictionless tree limb and back down to a 15 kg package on the ground.  (a) What is the magnitude of the least acceleration the monkey must have if it is to lift the package off the ground? If, after the package has been lifted, the monkey stops its climb and holds onto the rope, what are the (b) magnitude and (c) direction of the monkey’s acceleration and (d) the tension in the rope?