A 37.0-kg child swings in a swing supported by two chains, each 3.02 m long. The tension in each chain at the lowest point is 356 N. (a) Find the child's speed at the lowest point. m/s (b) Find the force exerted by the seat on the child at the lowest point. (ignore the mass of the seat.) N (upward)
Q: friction b me startin
A:
Q: P 25.0° A 55.0 kg block is pulled along a frictionless surface with a force P, exerted at an angle…
A: (a) In order to lift the block the force should be applied against the force of gravity, hence the…
Q: Next consider the case where the angle 0 is 40.2° and the penguin is sliding down the hill. Using…
A:
Q: A 1500kg car is driving on the road at a speed of 15 m/s. The driver applies the brakes, bringing…
A: Given- Mass of car , m = 1500 kg Initial speed of car, u = 15 m/s Final speed of car , v = 0 m/s…
Q: A block is pulled on a frictionless table (Fig. 1). The motion is constrained to be along the…
A:
Q: Three forces act on a particle that moves with unchanging velocity (2.4 m/s )i + (-6.5 m/s )j. Two…
A:
Q: What is the magnitude of the average drag force ?drag exerted on the car?
A: work done by non conservative forces = change in total energy work done by drag force = total final…
Q: A 35.0-kg child swings in a swing supported by two chains, each 3.06 m long. The tension in each…
A: Given, Mass of child = 35 Length of chains = 3.6 m Tension = 434 N (a) child's speed at lowest…
Q: Under what condition(s) will an object be in equilibrium? If the object is either moving with…
A: A object is claimed to be in equal state if the net force acting on the object is nought(0). By…
Q: Andrea wants to demonstrate the importance of safety in the design of elevators. She uses a model…
A: Newton's second law of motion states that the acceleration of an object is directly proportional to…
Q: A child is swinging on a swing, and having learned Physics, you decide to analyze the situation. The…
A: 3. The net force acting on the system can be expressed as Fnet=2T-mg=mv2r
Q: a crate of mass m = 130 kg is pushed at constant speed up the frictionless ramp (? = 25.0°) by a…
A: Given Mass (m) = 130 kg Angle θ = 25°
Q: The 29 kg crate is subjected to a force having a constant direction and a magnitude 150 N. When s…
A:
Q: A box is launched up a rough incline with an initial velocity, vo = 6.7 m/s, as in the figure below.…
A:
Q: A person pushes a box of mass m = 25 kg in a straight line along a rough floor. The applied force F…
A:
Q: a. You're biking down a hill at 11.375 m/s. You want to apply the brakes and stop over a distance of…
A: Given: Mass of rider + bike = m = 73.125 kg Inclination angle of the road = θ = 15.7 degrees…
Q: A 35.0-kg child swings in a swing supported by two chains, each 2.98 m long. The tension in each…
A:
Q: Which of the following statements are true? Select all correct. Question 4 options: An ideal…
A: An ideal pulley system assumes that pulleys are frictionless and massless and that ropes are…
Q: A 40 N box is resting on a table when a 10 N force is applied to it horizontally. The coefficients…
A: Frictional force F = uN
Q: A 36.0-kg child swings in a swing supported by two chains, each 2.94 m long. The tension in each…
A: Given: mass of child = m = 36.0 kg length of each chain = L = 2.94 m tension in each chain = T = 424…
Q: A constant applied force F, of 15.0 N pushes a box with a mass m = 7.00 kg a distance x = 15.0 m…
A: Given: Applied force Fp=15.0 N. Mass of the block m=7.0 kg. Distance traveled by block x=15.0 m. The…
Q: Brake or turn? The figure depicts an overhead view of a car's path as the car travels toward a wall.…
A:
Q: A constant applied force F, of 15.0 N pushes a box with a mass m = 6.00 kg a distance x = 15.0 m…
A:
Q: 3. A child is swinging on a swing, and having learned Physics, you decide to analyze the situation.…
A: Given : Mass of child m= 42.3 kg Chain length r = 3.17 m Tension = 415 N Child's swinging on a swing…
Q: A 35.0-kg child swings in a swing supported by two chains, each 3.02 m long. The tension in each…
A:
Q: A 95.5 kN car is traveling at 70.9 mph when the driver decides to exit the freeway by going up a…
A:
Q: two masses are connected by a rope which passes over an ideal pulley as shown in the figure. Block A…
A:
Q: A compressed spring of k = 60 N/m is released from rest on a frictionless surface. What is the…
A:
Q: A 39.0-kg child swings in a swing supported by two chains, each 2.98 m long. The tension in each…
A: The mass of the child: The length of the chains: The tension in each chain at the lowest point:
Q: M₁ M₂ See the figure. Two blocks are connected by a string, which passes over a light pulley. Block…
A: This problem can be solved using Newton's second law of motion.
Q: A car starts from rest and accelerates along a straight highway. The car’s engine produces a…
A: free body diagram given
Q: Thanks!
A: Given: Initial speed (u) = 3.0 m/s. Inclination angle of track (θ) = 16.0 Combined mass of monkey…
Q: while looking for a set of new tires for your car, you find an advertisement that offers two brands…
A: Given : brand x and brand y, at the same price. Brand x has a coefficient of friction on dry…
Q: A man whirls a 0.50-kg piece of lead attached to the end of a string of length 0.600 m in a circular…
A:
Q: incline with The incline rizontal sur- ra distance
A: Given: A block with mass (m) starting from rest at point A sliding on a horizontal surface. The…
Q: A block is being pulled up an inclined plane by a force with magnitude F=45.0 N as shown In the…
A:


Step by step
Solved in 3 steps with 2 images

- A skier starts from rest at the top of a hill that is inclined at 10.0° with respect to the horizontal. The hillside is 190 m long, and the coefficient of friction between snow and skis is 0.0750. At the bottom of the hill, the snow is level and the coefficient of friction is unchanged. How far does the skier glide along the horizontal portion of the snow before coming to rest? mAnswer the question correctly. Thank you!Frictionless, massless pulley A As shown in the Figure, two blocks are connected by a rope with negligible mass, over a massless and frictionless pulley. Block A weighs 160 N and moves on the inclined plane wit an inclination angle e=30°. The coefficient of kinetic friction between block A and the incline is Hk=0.25. (Take g = 10 m/s?) a) If block A slides down the incline at a constant speed, what is the weight of block B? b) If block B weighs 30 N, what is the acceleration of block A? m/s2
- A pendulum is 0.850 m long, and the bob has a mass of 1.00 kg. At the bottom of its swing, the bob’s speed is 1.60 m/s. A) What is the tension in the string at the bottom of the swing? in N B)The tension is greater than the weight of the bob because a- its horizontal component is increasing from zero. b-the bob has a downward acceleration, so the net Fy must be downward. c- the bob has an upward acceleration, so the net Fy must be upward. d- the bob has zero acceleration.The following information pertains to questions 1, 2, and 3. A workman pulls a sled across an asphalt road using a rope at angle 0 above the horizontal direction. The workman pulls with 1,000[N] of force. The coefficients of friction of the sled with the road are u=1.00 and µ=0.70. The sled has mass m. The sled is initially at rest. T710Q0[N]. 1) Which expression gives the magnitude of fmax for the situation illustrated above? A) mg B) mg – 1000cos(0) C) - mg + 1000cos(0) D) mg-1000sin(0) E) mg+ 1000sin(0) F) None of the aboveC A 6.0-kg rock and a 4.0 × 10-4-kg pebble are held near the surface of the earth. (a) Determine the magnitude of the gravitational force exerted on each by the earth. (b) Calculate the magnitude of the acceleration of each object when released. (a) Frock = 59 Fpebble = i smail ev in g N N
- 4.15Jill of the Jungle swings on a vine 7.00 m long. (a) What is the tension in the vine if Jill, whose mass is 65.0 kg, is moving at 3.00 m/s when the vine is vertical? (b) If the maximum tension that the rope can support is 750 N, what is the maximum speed that you can have on the rope?You want to lift a heavy box with a mass L = 89.0 kg using the two-ideal pulley system as shown. With what minimum force do you have to pull down on the rope in order to lift the box at a constant velocity? One pulley is attached to the ceiling and one to the box. L kg N
- You want to lift a heavy box with a mass L = 91.0 kg using the two-ideal pulley system as shown. With what minimum force do you have to pull down on the rope in order to lift the box at a constant velocity? One pulley is attached to the ceiling and one to the box. Lkg NA 38.0-kg child swings in a swing supported by two chains, each 3.08 m long. The tension in each chain at the lowest point is 420 N. (a) Find the child's speed at the lowest point. m/s (b) Find the force exerted by the seat on the child at the lowest point. (Ignore the mass of the seat.) N (upward) Need Help? Read Master1. A box is being pulled up a 40° incline by a 7.0 kg block suspended from a frictionless, massless pulley. The box does not start at the very bottom of the incline. The block is suspended 2.0 m above the ground. The coefficient of kinetic friction between the box and the incline is 0.40. The block is released from rest. At the moment the block hits the ground, the box is traveling at 2.0 m/s up the incline. What is the mass of the box?