When s = 0, the spring on the firing mechanism is unstretched. The arm is pulled back such that s = 100 mm and released. Assume all surfaces of contact to be smooth. Neglect the mass of the spring and the size of the ball. (Figure 1) igure 0 k = 1500 N/m 1.5 m 1 of 1 Part A Determine the maximum angle the 0.38-kg ball will travel without leaving the circular track. Express your answer using three significant figures. 0 = Submit 15. ΑΣΦ ↓↑ Provide Feedback Request Answer vec ? O Next >

Part A O O T XB = 1.154 ft XR = 1.137 ft O I' lije -1.25 ft- 1 ft- = www +0.2N=0.4 lb Ng=2.0 lb The coefficient of friction between the 2-lb block and the surface is μ = 0.2. The block has an initial speed of Vs = 6 ft/s and is acted upon by a horizontal force of P = 15 lb. Determine the maximum deformation of the outer spring B at the instant the block comes to rest. Spring B has a stiffness of KB = 20 lb/ft and the "nested" spring C has a stiffness of ke = 40 lb/ft. B kc = 40 lb/ft FB Fc kg = 20 lb/ft 0.75 4 Vg = 6 ft/s 2.0 lb P 15 lb ENG 6:16 PM 6/25/2022

Please solve using polar coordinates. The answer is 1.02 lb but I can't figure out how to get there. only HANDWRITTEN answer needed ( NOT TYPED)

Please help with the attached problem.

The 10-lb block has a speed of 4 ft/s when the force of F = (8t²) lb is applied. The coefficient of kinetic friction at the surface is μ = 0.2. (Figure 1) Figure F = (81²) lb v = 4 ft/s 1 of 1 > Part A Determine the speed of the block when it moves s = 30 ft. Express your answer to three significant figures and include the appropriate units. V = Submit 0 O μA Value Provide Feedback Request Answer Units ? Next >

The 30-kg disk is originally spinning at w = 115 rad/s. It is placed on the ground, for which the coefficient of kinetic friction is uc = 0.5. Neglect the mass of AB. (Figure 1) Figure 0.5 m 0.5 m 0.3 m B 1 of 1 Part A Determine the time required for the motion to stop. Express your answer to three significant figures and include the appropriate units. t = Submit Part B Value μà Request Answer Submit (FAB on A)x: (FAB on A)y= Determine the x and y components of force which the member AB exerts on the pin at A during this time using scalar notation. Express your answers using three significant figures separated by a comma. Units Request Answer ? τΫΠΙ ΑΣΦ 11. vec ↓↑ ? N

The automobile has a weight of 3300 lb and is traveling forward at 4 ft/s when it crashes into the wall. The impact occurs in 0.06 s. The figure shows a car crashing into a wall. If the coefficient of kinetic friction between the wheels and the pavement is μk = 0.3, calculate the impulsive force on the wall if the brakes were applied during the crash. The brakes are applied to all four wheels so that all the wheels slip

The 2-1b collar is released from rest at A and slides down along the smooth rod as shown in (Figure 1). Figure 2 ft 1 of 1 Part A If the attached spring has a stiffness 4 lb/ft, determine its unstretched length so that it does not allow the collar to leave contact with the top surface of the rod until 0 = 60°. Express your answer in feet to three significant figures. [ΨΕ ΑΣΦ1 lo = Submit Provide Feedback Request Answer vec ? ft

The roller coaster car has a mass of 900 kg, including its passenger. It is released from rest at the top of the hill A. Neglect friction, the mass of the wheels, and the size of the car. Take hp = 19 m, PB = 9.5 m, hc = 14 m, and pc = 7 m. (Figure 1) Figure h hB B hc C BRE 1 of 1 Part A Determine the minimum height of the hill crest so that the car travels around both inside the loops without leaving the track. Express your answer to three significant figures and include the appropriate units. h = Submit Part B NB = Submit Part C 0 Nc = Value Submit What is the normal reaction on the car when the it is at B? Express your answer to three significant figures and include the appropriate units. μᾶ Request Answer Di μA Value Request Answer LO ☛ μA Units What is the normal reaction on the car when the it is at C? Express your answer to three significant figures and include the appropriate units. Value www Request Answer Units ? Units wwwww ? ?

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