= [1] Consider a mass m constrained to move on the x-axis and subject to a net force F where k is a positive constant. The mass is released from rest at x = x, at time t = 0 s. -kx, (a) Draw a free-body diagram for the mass and indicate a coordinate system. (b) Write down Newton's 2nd Law (N2) for the mass, then convert it to first order differential equation for velocity. Solve for the velocity of the mass as a function of position, v = f(x). (c) Now use the result for velocity above in the form dx/dt = f(x) and solve for the position of the mass.
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- Tom enlists the help of his friend John to move his car. They apply forces to the car. F1 = 430 N and F2 = 347 N and friction is negligible. Mass of car = 3500 kg O1= -25 degrees and O2 = 12 degrees (assume the car faces the positive x-axis before the forces are applied. A) Find the force (in N) exerted on the car Magnitude = Direction (counterclockwise from the +x-Axis) = ______________ degrees B) What is the acceleration (in m/s squared) of the car? Magnitude = __________ m/s squared direction (counterclockwise from the +x-Axis) ______________ degreesdler?action=activityBranding&COURSEID=3377&SECTIONID=170728 1 2 1 2 art 1 art 2 $ X R F V 1. Two blocks are connected by a massless rope as shown below. The mass of the block on the table is m, and the hanging mass is m₂. The table and the pulley are frictionless. O 15 % 5 T 2 7 Subpart 1: Draw FBDs In your notebook, draw free body diagrams for m, and m₂ using the template as shown below. The forces acting on the system are weights of the blocks, m₁g, and m₂g, the tension in the string T and the normal reaction N₁ of the table on m₁. ^ B 10 6 Y G H & M- 7 hp U fa J m₁ * 00 8 N M 1 IAA ( 9 K < fo O ► 11 0 O L m₂ f11 3 P ; 22 112 Rain.... ^ 40) @ { + [ ? = 12 ☆ 1 insert ( } ← ] S 4:45 PM 9/27/2022 prt sc backspace pause EAn object undergoes one-dimensional motion along the x-axis subject to the the decelerating force dv kæv² m dt At time t = 0, the object's position is x = 0 and its velocity is v = v0. The decelerating force is a dv dv dx function of the object's position x(t) and velocity v(t). Using the fact that dt transform the dx dt problem into one having x as the independent variable. Solve for v as a function of x and v0 then determine the position xf at which the object comes to rest. If the object does not come to rest then xf = 00 (enter oo for infinity) dv = V = Xf = Question Help: O Message instructor Submit Question
- Please circle answersA 3.00-kg object is acted upon by an applied force causing it to move along a rough horizontal plane, with its x 5t² - 1 and y = 3t3 + 2, where x and y are in meters and t is in seconds. The and y coordinates given by x = coefficients of friction between the object and the surface are 0.4 and 0.8. Answer the following questions: a. What are the units of the numerical coefficients? b. Determine the acceleration of the object as a function of time. c. Determine the Net force acting on the object at t = 5s.Block 1 (10 kg) is pulled by a rope from left to right up a ramp which is inclined 50 degrees from the horizontal. The rope pulls on block 1 with a force of 150 N parallel to the surface of the inclined plane. The coefficient of kinetic friction between the block and the surface equals 0.3. Weight force on block 1 by EarthW1E = Tension force on block 1 by RopeT1R = Normal force on block 1 by SurfaceN1S = Frictional force on block 1 by Surfacef1S = What is the acceleration a of block 1?a =
- Q 5)A force vector F =3i + 3j N is applied on 5 kg mass of body on nonfrictionless horizontal surface. The velocity function of body is v = t + 2 . find the following : 1) frictional force (fs ) 2) the coefficient of friction of surface (μ) . (answer fs =1.7 N , u =0.34)A monkey pushes a box of mass 25 kg in a straight line across a rough floor. The applied force F has magnitude 85 N and acts downward at an angle 0 = 10° with respect to the horizontal, as shown below. The box is initially at rest at the position x/ a). Find the coefficient of friction between the box and the floor. and it has speed v2 = 0.55 m/s at position x2 = 3.50 m. 0 m, b). What is the net work done? c). How much work (magnitude and sign) is done by the friction force? m Hint: this q involves constant acceleration, Newton's laws, workA mass m is at rest on a horizontal frictionless surface at t = 0. Then a constant force Fo acts on it for a time to. Suddenly the force doubles to 2 Fo and remains constant until t = 2to- Part A Determine the total distance traveled from t = 0 to t = 2to- Express your answer in terms of the variables m, Fo, to, and appropriate constants. d = ΓΙ ΑΣΦ ?