A toy car with a mass of 1 kg starts from rest at the top of a ramp at point A. The toy car is released from rest, rolls 2.0 meters down the ramp, then another 3.0 meters across the floor to point B where its speed is measured to be 4.24 m/s. The air exerts a resistance force of 2.0 N on the car as it moves from A to B. Find the initial height of the car at point A. Assume g = 10 m/s^2.Note: The user has mastered the concept of the conservation of energy and is proficient in solving problems where energy is conserved but is new to solving energy problems involving work done by non-conservative forces. Explain how work is related to the total mechanical energy of a system, then use this information to set up and solve the problem above.

Q: A 33 kg child slides down a slide of height 6.0 m and length 19 m. The coefficient of kinetic…

A:

Q: A 7.80 g bullet is initially moving at 470 m/s just before it penetrates a tree trunk to a depth of…

A: Given Data: The mass of the bullet is, m = 7.80 g. The initial velocity is, v = 470 m/s. The…

Q: The small body has a speed VA = 6.9 m/s at point A. Neglecting friction, determine its speed at…

A:

Q: An object of mass 20.0 kg is at rest at the top of an inclined plane whose length is 12.0 m and…

A: Mass of object (m) = 20 kg Length of inclined plane (d) = 12 m Angle of incline (θ) = 30oCoefficient…

Q: A child and sled with a combined mass of 29.8 kg slide down a frictionless hill, starting at the…

A:

Q: The figure to the right shows a pool slide of length 5.50 m. The end point of the slide is at 30.0…

A: Length of pool slide = 5.50 m height of end point of slide above water level = 30 cm mass of child =…

Q: A 4.10-kN piano is lifted by three workers at a constant speed to an apartment 22.0 m above the…

A:

Q: A car accelerates uniformly from rest over a distance of 50.2 meters for 5.84 seconds and then…

A:

Q: Hulk is helping Natasha pull a 84 - kg box of weapons up a38 inclined plane with a velocity of 7.3…

A: in the question it is given that ,mass of the crate , m=84 kgθ =38oinitial velocity , u =7.3…

Q: A 96-kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 350…

A:

Q: An elevator has mass 775 kg, not including passengers. The elevator is designed to ascend, at…

A:

Q: In the figure, a 3.8 kg block slides along a track from one level to a higher level after passing…

A:

Q: A 85-g toy car is propelled by a compressed spring that starts it moving. The car follows a curved…

A: To solve the question we can use a different approach. However, we are going to solve it using the…

Q: A 250 g block is sliding with at a constant speed with a kinetic energy of 4.00 J across a smooth…

A: The work done by a force in moving an object by a certain distance is given by W = F.s, where F =…

Q: Some gliders are launched from the ground by means of a winch, which rapidly reels in a towing cable…

A: Write the given values with the suitable variables. m=179 kgu=0 m/sv=25.6 m/sd=59.5 m Here, m, u, v,…

Q: A vehicle is travelling at 20.0m/s steadily. If the engine provides 7.8x10 W consistently, what is…

A: Given, speed v = 20.0 m/s            power P = 7.8 × 104 W            resistive force Fr = ? In…

Q: A 4.10-kN piano is lifted by three workers at a constant speed to an apartment 20.7 m above the…

A: Given,Weight of the piano, F = 4.10 kNheight of the apartment, h = 20.7 mPower delivered by each…

Q: A 3.50-kN piano is lifted by three workers at constant speed to an apartment 25.0 m above the street…

A: GivenWeight of Piano, W=3.5 kN=3.5×103 NHeight above the street, h=25 m

Q: A 63.5-kg athlete leaps straight up into the air from a trampoline with an initial speed of 8.6 m/s.…

A: The objective of this question is to find the maximum height the athlete attains and her speed at…

Q: The 1.1-kg collar travels with negligible friction on the vertical rod under the action of the…

A:

Q: In the figure, a 3.7 kg block slides along a track from one level to a higher level after passing…

A:

Q: A 3.90-kN piano is lifted by three workers at a constant speed to an apartment 22.8 m above the…

A:

Q: Some gliders are launched from the ground by means of a winch, which rapidly reels in a towing cable…

A: Write the given values with the suitable variables.Here, m, u, v, and d are the mass, initial speed,…

Q: An 5.00 Kg object,initially at rest on a horizontal surface, was pushed using a force oriented 30.0…

A: Given :-  m= 5 Kg F=43 N makes 30o with horizontal d=3m coefficient of kinetic friction = 0.400

Q: A stationary 18.3 kg wooden box is pulled by a 273 N force that is 32^0 above the horizontal. A 105…

A: Given Mass of wooden box = 18.3 kg pulling force = 273 N 32° above the horizontal. Frictionforce =…

Q: With reference to the diagram above, select the correct expression for the work done by friction (W…

A: W = F.S Cosθ Here, F =Force = Friction = UN = Uk *Mg cos 15°     S = net displacement parallel or…

Q: A 32.0-kg  crate, starting from rest, is pulled across a floor with a constant horizontal force of…

A: Image-1

Q: Some gliders are launched from the ground by means of a winch, which rapidly reels in a towing cable…

A:

Q: A toboggan starts from rest on parliament hill which is 5.0 m above road level. The toboggan slides…

A:

Q: The spring force is initially greater than friction, so the block accelerates forward. But…

A: Given : Xo=0.400m, m =0.300kg  v²(t) =?

Q: A 3 kg object is moving to the right at a speed of 10ms10ms. The initial kinetic energy of the…

A: Scenario: An object is already set to motion with given velocity such that carrying kinetic energy…

Q: What is the maximum number of passengers that can ride in the elevator? Assume that an average…

A: mass of elevator = M = 620 Kg vertical distance = h = 20 m time = t = 15.1 s Power = P = 45 hp = 45…

Q: A 1.50 x 10³-kg car starts from rest and accelerates uniformly to 16.6 m/s in 12.3 s. Assume that…

A:

Q: A 2.1 x 10-kg car starts from rest at the top of a 4.9-m-long driveway that is inclined at 21° with…

A: Law of conservation of energy: The total energy of the system remains constant.   Energy lost due to…

Q: A child and sled with a combined mass of 32.6 kg slide down a frictionless hill, starting at the…

A: Given  Initial speed = u = 0 m/s  Final speed = v = 6.69 m/s   Height attain = H =??  Acceleration…

Q: A car accelerates uniformly from rest over a distance of 59.1 meters for 5.02 seconds and then…

A: We are given distance and time. We find acceleration. We then find the final velocity. Since the…

Q: In the figure below, a block slides along a path that is without friction until the block reaches…

A: The question asks for the reactivity change and reactor period due to safety rod movement. Here's…

Q: A child and sled with a combined mass of 48.0 kg slide down a frictionless slope. If the sled starts…

A: Given Mass m    = 48 kg Velocity v = 2.50 m/s Find the height of the hill, as following below.

Q: A car requires 72.8 hp to maintain a constant speed of 21.3 m/s on a straight, flat road. Assuming…

A:

Q: A car accelerates uniformly from rest over a distance of 59.1 meters for 5.02 seconds and then…

A:

Q: A child and sled with a combined mass of 58.0 kg slide down a frictionless slope. If the sled starts…

A:

Q: A force in the +x-direction with magnitude F(x) = (8.0 N - 10.530 N/m)x is applied to a 6.00 kg box…

A: Given data Fx=8 N-10.53 N/m xm=6 kg