the truck carefully slows down. During this braking maneuver, the string is observed to make a constant angle of ? = 23.0° with the vertical. (c) What is the acceleration of the truck (in m/s2) while it is braking?

Determine the force Q-> when the block moves with constant velocity. Express your answer in vector form.

A block of mass M is suspended at rest by two strings attached to walls, as shown in the figure. The left string is horizontal with tension force T2 and and the right string with tension force T, makes an angle e with the horizontal. g is the magnitude of the gravitational acceleration. Which of the following statements is true? Select all apply. T2 M O The net force along the y-component is non-zero. O The acceleration along the x-component is zero. O The net force along the x-component is zero. O The acceleration along the y-component is non-zero. O The acceleration along the y-component is zero. O The acceleration along the x-component is non-zero. O The net force along the y-component is zero. O The net force along the x-component is non-zero.

Problem #2: A 3.00 kg block (mass 1) and a 5.00 kg block (mass 2) are connected by a light string as shown; the inclination of the ramp is 40.0°. Friction is negligible. What is: (a) the acceleration of the blocks (b) the tension in the string? 40° 2. 2)

Same rocket as in the previous question. After the rocket has been in flight for a while, having burned and exhausted 80,000 kg of propellant, its acceleration has reached 25.0 m/s². All this while the thrust has been constant at 5.00 x 106 N. What is the magnitude of the drag force (that is, the resistance from the air) at this point? Note that at this point the rocket's altitude is still low, so you can still take gravity to be g = 9.81 m/s² O 1.18 x 106 N O 8.23 x 105 N O 5.00 x 106 N O 3.00 x 106 N

A contestant in a winter games event pushes a 37.0 kg block of ice across a frozen lake as shown in the figure. 25°. The coefficient of static friction is 0,1 and the coefficient of kinetic friction is 0.03. (a) Calculate the minimum force F (in N) he must exert to get the block moving. 39.96 (b) What is its acceleration (in m/s2) once it starts to move, if that force is maintained? 0.686 xm/s2 Additional Materials O Reading Submit Answer P Type here to search DELL Esc F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 トI @ #3 $ % 3 4 Tab W R T. Y Caps Lock K Ehift V つ A

= 60°. When released from rest, m1 accelerates downward at Two objects are connected by a light string that passes over a frictionless pulley as shown in the figure below. m1 = 6.00 kg, m2 = 6.00 kg, and o than 0.57 and to even begin sliding in the first place the coefficient of static friction must be less 1.421 m/s2. For this to happen, the coefficient of kinetic friction must be . Use g=9.8 m/s2. m2

A fuzzy die (m = 0.2 kg) hangs from the ceiling of a car. When the car accelerates forward along a horizontal road, the die swings backward so that the string supporting it makes an angle of 4° with the vertical. What is the acceleration of the car?

The coefficients of friction between a box of mass 9.5 kg and the horizontal floor beneath it are ?? =0.65 ??? ?? = 0.49. The box is stationary. The magnitude of the minimum force that would suffice to setthe box into motion is ? .

A car of mass 972 kg is traveling 24.4 m/s when the driver applies the brakes, which lock the wheels. The car skids for 5.27 s in the positive x-direction before coming to rest. a.) What is the car's acceleration (in m/s2)? (Indicate the direction with the sign of your answer.)   (b) What magnitude force (in N) acted on the car during this time?   (c) How far (in m) did the car travel?