While a roofer is working on a roof that slants at 42.0 ∘∘ above the horizontal, he accidentally nudges his 89.0 NN toolbox, causing it to start sliding downward, starting from rest. If it starts 4.90 m from the lower edge of the roof, how fast will the toolbox be moving just as it reaches the edge of the roof if the kinetic friction force on it is 19.0 N?

Q: A man on a motorcycle plans to make a jump as shown in the figure. If he leaves the ramp with a…

A: In this case, we can use projectile motion concept because the biker is subjected to no other force…

Q: A block of mass M is at the top of a ramp of length L and angle 0. The block slides without friction…

A: According to the conservation law of energy, the relation between the kinetic energy and the…

Q: A stationary soccer ball of mass m = 0.76 kg is kicked with a constant force of F = 11 N. The…

A:

Q: For a certain run, the following data is obtained when filling up Table 2 of the manual: Mass of…

A: For middle question:Given values:Mass of cart (m) = 0.7 kgAcceleration due to gravity (g) = 9.81…

Q: A 2.1 x 103 - kg car starts from rest at the top of a 5.0 - m - longdriveway that is inclined at…

A: Frictional force is opposite to direction of motion of the car as shown in the figure.

Q: A mass of 3.00 kg is initially at rest upon a frictionless incline with a 30.8 degree angle of…

A:

Q: 26. An 80.0-kg skydiver jumps out of a balloon at an alti- tude of 1 000 m and opens his parachute…

A: (a)Without parachute, the acceleration is,

Q: A small block slides down a frictionless track whose shape is described by y = (x^2) /d for x0. The…

A: To solve this problem, we need to use conservation of energy. The total mechanical energy of the…

Q: A small block slides down a frictionless track whose shape is described by y = (x^2) /d for x0. The…

A: A small block slides down a frictionless track whose shape is described by y = (x^2) /d for x<0…

Q: If a 3.15 kg object is placed on a frictionless incline of 70.5 º and released from rest, what is…

A: Given, mass of the object, m = 3.15 kg angle of inclination of the plane, θ = 70.5° initially the…

Q: han on a motorcycle plans to make a jump as shown in the figure. e leaves the ramp with a speed of…

A: u = 32 m/s  ux= 30.4m/s at max height

Q: A 14 kg penguin slides on its belly down an icy, frictionless glacier. If the penguin started from…

A: Write the given values of the problem- Mass=14 kg final speed(vf) vf=14 m/s

Q: A force F → = ( c x − 3.00 x 2 ) i ^  acts on a particle as the particle moves along an x axis, with…

A: W=∫0 m2.8 mFxdx=∫0 m2.8 mcx-3.0x2dx=cx22-x32.80=3.92c-21.95

Q: skier is initially moving at 13.7 m/s on level ground as they approach a hill that is angled upward…

A: Initial velocity (u) = 13.7 msAngle of incline of hill (θ) = 15.8oLet the mass of skier = m Distance…

Q: An electric locomotive accelerates a 650-ton train of wagons to 140 km/h on an uphill line with a…

A: Given, m=650000kg v=140km/h Gradient=10.5% ∆V=30km/h The initial acceleration is, Hence, the…

Q: A cart, of mass m, is released at the top of a ramp of distance d and height h as shown. Neglect…

A:

Q: A record for stair climbing was achieved by a man who raced up the 1600 steps of the Empire State…

A: Given data from question,  Number of steps = 1600 Height = 320m Time taken = 10.2min Weight of man =…

Q: m 30°

A:

Q: A box of weight 150kgf has gravitational potential energy stored in it equal to 14700J. Find the…

A: Given that,The gravitational potential energy (P.E)=14700 JThe gravitational weight of body…

Q: What minimum speed does a 180 gg puck need to make it to the top of a 3.10 mm -long, 27.0 ∘∘…

A: Given : m = 180 g = 0.180 kg L = 3.10 m θ = 27°

Q: A block slides down a frictionless ramp of height h. It reaches speed u at the bottom. To reach a…

A: Since there are no energy losses, the potential energy at the top of the ramp is converted into…

Q: A particle, starting from point A in the drawing (the height at A is 3.00 m), is projected down the…

A: Given data:  Initial height (hi) = 3.00 m Final height (hf) = 4.81 m Final velocity (v) = 0 m/s…

Q: A parachutist weighing m=70kg (including equipment) falls vertically from a height of 1500 meters…

A: Given data: The mass of parachutist is m=70 kg. The vertical height is h=1500 m. The coefficient of…

Q: what distance from the stopping point did he apply his brakes?

A: Given initial speed u = 480 km/h

Q: A spring is held by cables so that it is initially compressed by 60mm. This spring is further…

A: We are given spring which is compressed to some distance. The spring potential energy gets stored.…

Q: The 70-kg boy slides down the smooth water slide. If he starts from rest at A, determine his speed…

A:

Q: A hydroelectric generator converts kinetic energy of water into electrical energy. Each second 2178…

A: Here given a hydroelectric generator in each second 2178 m³ passes over a waterfall of height 332 m.…

Q: Tesla Model 3 (m=1645kg) has a speed of 26.7km/h at the top of a hill (35.4 m). The motor and brakes…

A:

Q: A small block slides down a frictionless track whose shape is described by x>0, The value of d is…

A:

Q: A small block slides down a frictionless track whose shape is described by y = (x^2) /d for x0. The…

A:

Q: A small block slides down a frictionless track whose shape is described by y = (x^2) /d for x0. The…

A: given      y=x2d for x<0      y=-x2d for x>0     d=2.33     initial velocity of block =0m/s…

Q: A small block slides down a frictionless track whose shape is described by y = (x^2) /d for x0. The…

A:

Q: A small block slides down a frictionless track whose shape is described by y = (x^2) /d for x0. The…

A: The frictionless track is described as, y=x2d for x>0 and y=-x2d for x<0. The value of d is…

Q: A small block slides down a frictionless track whose shape is described by y = (x^2) /d for x0. The…

A: Given values: Equation of y, y=x2d           for x<0y=-x2d       for x>0 Value for d = 2.10 m…

Q: The top of a ski hill sits at an altitude of 2000 m. If you were to "Frenchfry" (go straight down…

A: Here, we have to Use Conservation of energy As difference in altitude is given, we just have to…

Q: You are designing a ski jump ramp for the next Winter Olympics. You need to calculate the vertical…

A:

Q: While a roofer is working on a roof that slants at 38.0 ∘∘ above the horizontal, he accidentally…

A:

Q: In the figure, a 4.4 kg block slides along a track from one level to a higher level after passing…

A: Given: In this question, the given values are, m=4.4 kg, vo=6.4 m/s, ∆h=1.1 m, μk=0.590. To find the…

Q: The engine in an imaginary sports car can provide constant power to the wheels over a range of…

A: initial speed u = 0 final speed v = 120 km/h = 50 x 1000/3600  = 13.89 m/s

Q: 55 kg skier starts from rest at the top of a ski jump, point ? shown in the figure, and travels down…

A:

Q: n a circus performance, a monkey is strapped to a sled and both are given an initial speed of 5.19…

A: Use conservation of energy to calculate the distance of the sled on the inclined track.…

Q: Resistance to the motion of an automobile consists of road friction, which is almost independent of…

A:

Q: A ski jumper starts from rest 40.0 m above the ground on a frictionless track and flies off the…

A: Given,Height of the track, h1 = 40.0 mthe track is at an angle of, 45°(above the horizontal)at an…

Q: A 5 kg blue block is released from rest at point A (3m high) and slides down a track. The track…

A: Given, Mass of block,m=5 kg Height of release,h=3 m Coefficient of kinetic friction,μk=0.35 Length…

Q: How high would you have to lift a 2000 kg car to give it a potential energy of: (a) 4. 0 x 103 J ,…

A:

Q: Starting from rest, a 93-kg firefighter slides down a fire pole. The average frictional force…

A: We will first find the acceleration of the firefighter using Newton's second law. We then use…