Q: A block slides down an inclined surface of inclination 30° with the horizontal. Starting from rest…
A: Given data: Angle θ=30o Initial velocity u = 0 m/s Distance s = 8 m Time t = 2 s
Q: A box is at rest on a table. The book has a mass of 6 kg. You pull straight upwards on the box by a…
A: Please note : As per answering guidelines I can answer the first question only. Since, this is not a…
Q: On this inclined plane made of stone Senefer the Egyptian architect has a 5000 kg block he needs to…
A: Gravitational force along incline=mgsinθFrictional force along incline=μN=μmgcosθ
Q: .A 70-kg box is slid along the floor by a 400-N force. The coefficient of friction between the box…
A: when the body of mass m is kept on the ground then the normal force on the body due to ground is…
Q: A 30Kg box rest on table. If a 15Kg box is placed on the top of the 30Kg box, determine the normal…
A:
Q: A person wants to move a 10kg box to a different location. He pushes the box at a steady 0.5 m/s…
A:
Q: Police investigator observes a skid marks 25m long left by a 1500 car. The car skidded to stop on a…
A: Given data: Covered distance before stop (d) = 25 m Mass of the car (m) = 1500 kg Need to determine…
Q: A 4-kg block rests on a horizontal surface. The block is pulled by 20 N force acting 25º above the…
A: F = 20 N Φ = 25 ⁰ M = 4 kg
Q: Mass Ma lies on top of mass Mp, as shown. Assume M, > Mạ. The two blocks are pulled from rest by a…
A:
Q: A rifle bullet with a mass of 12.0 g travelling toward the right at 260 m/s strikes a large bag of…
A: Given : m = 12 g = 0.012 kg vi = 260 m/s ∆x = 23 cm = 0.23 m vf = 0 (because finally bullet strikes…
Q: A 20 N block is placed on an inclined plane and connected to a 10 N hanging block by a cord that…
A:
Q: Suppose a 10 N force is applied to the side of a 4 Kg block that is sitting on a table. The block…
A: Data given , Force applied on the side ( f ) = 10 N Mass of the block ( m ) = 4 kg
Q: a car is driving on level ground at 20.0 m/s slams on its break and skids to a halt. It the…
A: Given: Initial velocity u=20 m/s Kinetic friction coefficient μk=0.750 Initial velocity u'=40 m/s…
Q: A 15-kg block is on a frictionless ramp that is inclined at 20° above the horizontal. It is…
A:
Q: A 1.6 kg book is pressed against a wall with a perpendicular force. The coefficient of friction is…
A: Draw the free-body diagram of the book as illustrated below:
Q: A 68 kg stunt- woman falls off a bridge and travels 20.0 before colliding with a pile of mattresses.…
A:
Q: A lift, with a mass of 250 kg, is initially at rest on the ground floor of a tall building.…
A:
Q: A 50 kg cart is initially at rest. Jezzel decided to pull the cart on a frictionless ramp inclined…
A:
Q: Two messes are Connected by a pulley. A is 5 kg and B is 15 kg. Friction between B A and the…
A:
Q: A 7.0 kg mass is connected to a 1.0kg mass over a pulley. The coefficient of kinetic friction is…
A: Solution
Q: A car going 32.0 km/h on dry, level pavement jams on its brakes and skids to a stop. The car’s mass…
A: Initial speed, u.= 32 km /h= 32x5/18 m/s = 8.89 m/s Mass, m= 1250 kg friction coefficient, μk=…
Q: A car is moving at 50 mph initially on the road, then the engine suddenly shut down and the car…
A: Given Data:- Initial speed of the car is v0=50 mph =50×1 mi1 h×1609 m1 mi×1 h60 min×1 min60 s…
Q: A man pushes a box that is on a ramp. The box has a mass of 5 kg and the ramp is at 30° compared to…
A: Given data: - The mass of the box is m = 5 kg. The angle of the ramp is θ = 30o. The pushing force…
Q: a bowling ball with an initial velocity of 3 m/s rolls along a level floor for 50 m before coming to…
A: According to Newton's second law of motion, the net force acting on an object is the product of the…
Q: A hockey puck slides along a rough, icy surface. It has an initial speed of 20 m/s and slides to a…
A:
Q: A 10kg object is initially moving east at constant speed. A net external force of 20N directed west…
A: Given data: Mass (m) = 10 kg Initial velocity is constant, towards East Force (F) = 20 N, towards…
Q: Elevator Design. You are designing an elevator for a hospital. The force exerted on a passenger by…
A: Given: Force exerted on a passenger by the floor of the elevator is less than 1.60 times the weight…
Q: 10-kg crate is placed on rough surface. A rope attaches this crate to another 5-kg crate over a…
A:
Q: You are pushing your little sister in a sled over level ground. Their combined mass is 30 kg. The…
A: Given combined mass = 30 kg. The coefficient of friction is 0.2 We have to calculate the force must…
Q: A tree trunk can be penetrated to a depth of 5.30 cm by a 7.80-g bullet traveling at 520 m/s. (a)…
A: Answer: Given data, Penetration depth (d)=5.30 cm=0.0530 m Mass of bullet (m)=7.80 gm=7.80×10-3 kg…
Q: A box of mass m is accelerated up the ramp by a string that exerts a constant tension T, as shown.…
A:
Q: A 15kg light fixture is held up by a rope. Calculate the tension in the rope.
A: The tension is acting upwards from the mass m. The system is in static equilibrium.
Q: A 20 N block is placed on an inclined plane and connected to a 10 N hanging block by a cord that…
A:
Q: ramp. Marble Ramp Incline 10 cm 9 cm T. 7 cm 4 cm Without friction, what is the maximum height the…
A: If the net external force acting on a system is zero, then the total mechanical energy of the system…
Q: A 3.5-kg block rest on a horizontal tabletop. A cord is attached to this block, the cord passing…
A: Given 1st block mass, m1=3.5 kg 2nd block weight, w2=5N Standard quantities g=9.8 m/s2
Q: A fire helicopter carries a 620-kg bucket of water at the end of a 20.0-m-long cable. Flying back…
A: FBD: The mass of the bucket is 620 kg. The cable attached to the bucket is making 40 0with respect…
Q: A box with mass m - 30 kg rests on a horizontal surface. You apply a force on the box of F- 300 N at…
A: Givenm=30 kgF=300 Nθ=30°
Q: A box weighing 40.0 N, is initially at rest on a rough 6.0 m long ramp. The ramp is inclined at…
A: Solution: given that weight of box W = 40 N length L = 6 m angle = 30 degree friction force = 6 N
Q: A hockey puck on a frozen pond is given an initial speed of 20.0 m/s. If the puck always remains on…
A:
Q: An elastic loaded balloon launcher fires balloons at an angle of 38 degrees N of E from the surface…
A: The x component of the velocity of balloon is, vx=vcosθ=20.6 m/scos38°=16.2 m/s The y component of…
Q: O kg skier is in a tuck position and moving down a 20° hill. Air resistance applies a movement of…
A: GivenMass of skier, m=70 kgAngle, θ=20°Air resistance , Ra=15 NThe coefficient of friction between…
Q: Two boxes, as shown below, are sliding along a floor after being given an initial speed v to the…
A:
Q: A force of 60. N is applied to a rope to pull a sled across a horizontal surface at a constant…
A: Rectangular components of force can be shown as follows: Component of the force parallel to the…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- A baseball catcher is performing a stunt for a television commercial. He will catch a baseball (mass 145 g) dropped from a height of 60.0 m above his glove. His glove stops the ball in 0.0100 s. What is the force exerted by his glove on the ball?Professional Application A car moving at 10 m/s crashes into a tree and stops in 0.26 s. Calculate the force the seat belt exerts on a passenger in the car to bring him to a halt. The mass of the passenger is 70 kg.The x and y coordinates of a 4.00-kg particle moving in the xy plane under the influence of a net force F are given by x = t4 6t and y = 4t2 + 1, with x and y in meters and t in seconds. What is the magnitude of the force F at t = 4.00 s?
- As a fish jumps vertically out of the water, assume thatonly two significant forces act on it: an upward force F exertedby the tail fin and the downward force due to gravity. A recordChinook salmon has a length of 1.50 m and a mass of 61.0 kg.If this fish is moving upward at 3.00 m/s as its head first breaksthe surface and has an upward speed of 6.00 m/s after twothirdsof its length has left the surface, assume constant accelerationand determine (a) the salmon’s acceleration and (b)the magnitude of the force F during this interval.A 3.00-kg block starts from rest at the top of a 30.0° inclineand slides 2.00 m down the incline in 1.50 s. Find (a) theacceleration of the block, (b) the coefficient of kinetic frictionbetween the block and the incline, (c) the frictional force actingon the block, and (d) the speed of the block after it hasslid 2.00 m.Paleontologists estimate that if a Tyrannosaurus rex had tripped and fallen, the ground would have exerted anormal force of approximately 260,000 N on its torso as it landed.Assuming the torso has a mass of 3800 kg, (a) find the magnitudeof the torso’s upward acceleration as it comes to rest. (For comparison, humans lose consciousness with an acceleration of about 7g.)(b) Assuming the torso of a T. rex is in free fall for a distance of 1.46m as it falls to the ground, how much time is required for the torsoto come to rest once it contacts the ground?
- A 63.0 kgkg parachutist falling vertically at a speed of 6.50 m/sm/s hits the ground, which brings him to a complete stop in a distance of 0.87 mm (roughly half of his height). 1) Assuming constant acceleration after his feet first touch the ground, what is the average force exerted on the parachutist by the ground? Express your answer with the appropriate units.: A wooden ball of weight 196 newtons is dropped vertically from a height of 100 meters above the ground. Throughout the fall, drag is present by a factor 4v due to air resistance, where v is the velocity of the ball at time t (in seconds). After how many seconds will the ball impact the ground? Assume that the net force acting on the ball is modeled by m(dv/dt) = mg - kv, where m is the mass of the ball. Also, assume that there is no initial velocity and that the acceleration due to gravity g is 9.8 meters per second squared. A 1.23 seconds B) 2.89 seconds C.3.25 seconds D.4.01 seconds E. 4.20 seconds F 5.00 seconds G.5.31 seconds H 6.20 secondsA 70 kg bicyclist is riding her 15 kg bicycle downhill on a road with a slope of 80without pedaling or braking. The bicyclist has a frontal area of 0.45 m2and a dragcoefficient of 1.1 in the upright position, and a frontal area of 0.4 m2and a dragcoefficient of 0.9 in a racing position. If the downhill speed of the bicyclist(terminal velocity) can be determined when the total force acting on the “body” inthe direction of movement is equal to zero, determine the percentage of downspeed that she can be increased when she is in a racing position. Air temperatureis 150C and disregarding the rolling resistance and friction at the bearing.
- A constant retarding force of 50 N is applied to a body of mass 20 kg moving initially with a speed of 15 ms–1. How long does the body take to stop?Typically, a bullet leaves a standard 45-caliber pistol (5.0-in. barrel) at a speed of 262m/s.If it takes 1 ms to traverse the barrel ,determine the average acceleration experienced by the 16.2g bullet within the gun and then compute the average force exerted on it .Superman must stop a 120-km/h train in 200 m to keep it from hitting a stalled car on the tracks. If the train’s mass is 3 X 105 kg, how much force must he exert? Compare to the weight of the train (give as %). How much force does the train exert on Superman? Solution in handwritten.