A 10 kg object is released at the top of a building 100 m high. If the force of air resistance is on the object is 40 N. Its speed just before strikes the ground is A 55 m/s B 30 m/s C 50 m/s D 34

Q: A single force of F(t) = 3t + 6 acts on a box that is initially stationary on a frictionless…

A: c. 12.0 m/s is the correct answer

Q: A 1000 Kg truck has a power output of 40. 0 kilo watts. Find the time (seconds) needed to accelerate…

A: Mass of truck, M=1000kg Mass of load, m=100kg Initial speed of truck, u=40m/s Final speed of truck,…

Q: A 0.150kg glider slides on an ice pond with negligible friction with speed of 0.8 m/s. It has a…

A:

Q: A child and sled with a combined mass of 52.5 kg slide down a frictionless hill that is 7.08 m high…

A:

Q: A 0.35 kg baseball is dropped from rest from a height of 3.85 m. How fast will it travel just before…

A:

Q: A sled is initially at rest at the top of a hill at an elevation 55.0 m higher than the elevation at…

A:

Q: A package with a mass of 40.0 kg slides down a smooth ramp with negligible friction. The package…

A:

Q: 40. A 1500 kg car accelerates from 0 to 25 m/s in 7.0 s. What is the average power delivered by the…

A: here we have to apply work energy theorem

Q: A slingshot fires a pebble of mass 0.05 kg from the top of a building at a speed of 16.0 m/s. The…

A: Given the height of the building is 36.0 m  The speed is 16.0 m/s The formula for the conservation…

Q: A chauffeur driving a 1200-kg car increases her speed from 30 m/s to 40 m/s in 5 s. Determine the…

A: Power is defined as the work done per unit time: P = work donetime The work done to increase the…

Q: An engine uses 20000 N of force to power a car at an average speed of 5.0 m/s. What is the average…

A: P=Wt=Fdt=Fv

Q: A 30.1 kg child on a sled slides down a hill, reaching a speed of 6.65 m/s. How high was the hill…

A: Given, Mass of child,m=30.1 kg Speed,v=6.65 m/s

Q: ˆı + 6ˆȷ) for a long time it is observed at the position ⃗rf = (13 ˆı + 8 ˆȷ) m with a speed of 1.5…

A: Given:- The mass of the space junk = 60 kg  the net force Fnet  =(  13 ^i+16^j )N  The initial…

Q: A person standing at the bottom of a 10m deep hole in the ground throws a 0.5 kg ball straight up at…

A:

Q: A object of mass 3.00 kg is subject to a force Fx that varies with position as in the figure below.…

A: Given:At x = 0u = 0.450 m/sMass of object, m = 3 kg

Q: 8) A 60.0 kg student starts from rest (Point A) and slides 26.0 m down a hill where the average…

A: Given: Mass of student = 60 kg Length of the hill = 26 m Height of the hill = 17 m Frictional force…

Q: 7. A roller coaster has two vertical loops one after the other. The roller coaster has a speed of…

A:

Q: If a 1.5 kg chicken is running with a speed of 10.0 m/s, its kinetic energy is:   Question 19…

A: Given data:  Mass (m) = 1.5 kg Speed (v) = 10.0 m/s Required: Kinetic energy

Q: A single force of F(t) = 3t+ 6 acts on a box that is initially stationary on a frictionless…

A: a. 12.0 m/s is the correct answer

Q: puck’s

A: The work-energy theorem can be applied here, work done=change in kinetic energy Work done by a body…

Q: A object of mass 3.00 kg is subject to a force Fx that varies with position as in the figure below.…

A: Given,

Q: The person is roller skates so friction can be ignored. They are traveling at 2.0 m/s beginning the…

A:

Q: 5 A sled is initially at rest at the top of a hill at an elevation 55.0 m higher than the elevation…

A:

Q: 3. A baseball with a mass of 0.65 kg was pitch into the air at a height of 25 meter above the ground…

A:

Q: A rollercoaster with a mass of 3500 kg goes over its first hill with a speed of 15 m/s. The first…

A:

Q: A box of mass 4.0 kg hangs by a cable from the ceiling of an elevator. The elevator is moving down…

A:

Q: The electric motor of a model train accelerates the train from rest to 0.680 m/s in 15.0 ms. The…

A: As per the given data, Mass of the motor (m) = 830 g = 830×10-3 kg; Initial velocity (u) = 0 (rest);…

Q: A force acting on a 2.00 kg object is given by F(x) = (2.00 N/m) x + (1.00 N/m³)x³. An object starts…

A: Given value--- mass = 2 kg . F = 2x + x3 . We have to find--- speed of object at x = 2 m .

Q: A worker is trying to drop a 10 kg boulder off a 10 m high cliff.. At this particular location,…

A:

Q: A 30.0-kg child starting from rest slides down a water slide with a vertical height of 10.0 m. What…

A: mass of child(m)=30 kg vertical height(h)=10m as child is coming down its potential energy is…

Q: A 3 kg block (block A) is released from rest at the top of a 20 m long frictionless ramp that is 7 m…

A: "As per the guidelines i solved the first three subpart".  (a) Since the block A is at the top…

Q: A block with a mass m is moving on a frictionless horizontal surface with a speed of V 10 m/s. The…

A: The block of mass m will momentarily be moving with the same velocity as that of mass M when the…

Q: A sled and a rider together have a combined mass of 87 kg. They slide from rest down a frictionless…

A:

Q: 2. A 1 kg ball is released from a height of 6 m. A 2 kg ball is released from a height of 3m. If…

A: Mass of first ball (m) = 1 kg Initial height of first ball (h) = 6 m Mass of second ball (M) = 2 kg…

Q: 10) A skier of mass 82.4 kg starts his run from rest. The skier drops 155 m vertically while skiing…

A: Given: Mass of skier, m=82.4 kg Initial height, H=155 m Final height, h=0 speed at bottom, v=10.0…

Q: An elevator with total mass of 1,600 kg is moving up ward with constant acceleration. A friction in…

A: Write the given values of the problem- Total mass=1600 kg Force=4000 N Speed(v) v=3 m/s Constant…

Q: A 20 kg box is dropped from the roof of a 10-storey building ( 4 meters / floor). Determine the…

A: Given that, The mass of a box, m = 20 kg It is dropped from the roof of a 10-storey building (4…

Q: A 1000.0 kg car is moving at 15 km/h. If a 2000.0 kg truck has 18 times the kinetic energy the car,…

A: Given data The mass of the car is given as mc = 1000 kg. The velocity of the car is given as vc =…

Q: The drawing shows two boxes resting on frictionless ramps. One box is relatively light and sits on a…

A: Given data The mass of the first block is m1 = 13 kg The mass of the second block is m2 = 37 kg The…

Q: A 2.1 ✕ 103-kg car starts from rest at the top of a 4.9-m-long driveway that is inclined at 16° with…

A: Given information: The mass of the car (m) = 2.1×103 kg The length of the drive way (d) = 4.9 m The…

Q: 805 (8 In the figure, a frictionless roller coaster car of mass m =805. kg tops the first hill with…

A:

Q: A kid on a bike with a combined mass of 100 kg. goes 7 m/s at the top of a hill. The hill has a…

A: Apply the energy conservation equation between the top and the bottom of the hlll. Here, vt is the…

Q: A object of mass 3.00 kg is subject to a force Fx that varies with position as in the figure below.…

A: Given,

Q: A force acting on a 2.00 kg object is given by F(x) = (2.00 N/m)x+ (1.00 N/m³)x³. An object starts…

A: The mass of the object is m=2.00 kg The force acting on the mass is Fx=2x+1x3

Q: Which has more kinetic energy: a 0.0012-kg bullet traveling at 395 m/s or a 6.0  107-kg ocean liner…

A: Ebullet=12mv2=0.50.0012 kg395 m/s2=93.6 J

Q: An object starts from rest and moves a distance d due to the presence of a net force F_net. If the…

A: Option- a is correct answer. Since change in kinetic energy produced work done . So E=F×d Where E =…