17. A child decides to take her cat on a walk, but the cat does not cooperate. The child pulls on the 2.5 kg cat with force of 20 N in a direction that is 30 degrees above horizontal, and the cat resists being pulled forward with a horizontal force of 15 N. What is the acceleration of the cat? Your answer: O 0.9 m/s² O 2 m/s? D 13 m/s? D 17 m/s²

Q: Calculate the amount of work done if a 300 N object is lifted to a height of 2.5 m.

A: Given that Weight of object F = 300 N Height h = 2.5 m

Q: Take a boat with a mass of 1.5 kg and lift it to a height of 2m. Compute the amount of work done.

A: Given:Mass,m=1.5 kgHeight,h=2mGravitational acceleration,g=9.81 m/s2Now,Work done,wW=Fdcosθ…

Q: Write a short note on work?

A: Work

Q: A weight lifter raises a 963 N weight a vertical distance of 1.87 m. Compute the work done by the…

A:

Q: How much work is needed to lift a 100 pound weight from 10 feet above ground to the top of a 50 foot…

A:

Q: which is more tiring, running or walking in the stairs? explain

A: Given : Which is more tiring running or walking in the stairs ?

Q: If the energy stored in the spring when it was stretched .25 m was used to launch a .1kg ball…

A: Given, m=0.1 kg x=0.25 m energy stored in the spring =12kx2 Where k is the spring constant and x is…

Q: 1) Find FF u=0.5 2) Find FN and Fparallel Inclined plane 30° 20kg थे 80N

A:

Q: A body of mass 2 kg was dropped down from a height. If the KE attained by it is 400 J, find the…

A: Solution:-Given thatmass of body (m)=2 kgKE attained by the mass (KE)=400 J

Q: Write down The relationship between the total work done on an object and how the object’s speed…

A:

Q: A projectile is launched over a horizontal surface in such a manner that its maximum height is 1/3…

A: Given that a projectile is launched over a horizontal surface in such a manner that its maximum…

Q: Find work done F=12 N 14-5m

A: Given data:  Force (F) = 12 N Displacement (d) = 5 m Required: Work (W)

Q: A variable force of 5x-2 pounds moves an object along a straight line when it is x feet from the…

A: Variable force,

Q: Calculate the amount of work done in raising a block of mass 5 kg through a height of 40 cm.

A:

Q: | How can energy be transferred back forth between kinetic energy and potential energy?

A: We can say that, Kinetic energy can be stored if we drop the object from the shelf or release the…

Q: a) What is the Potential Energy of a 38kg flowerpot (initially at rest) at the edge of a roof 120 m…

A: Given data:  Mass of flowerpot (m) = 38 kg Height of edge of a roof (h) = 120 m PE at ground is…

Q: A 39 kg child is jumping on a trampoline with a spring constant of 4700 N/m. On a particular jump,…

A: solution: Apply the conservation of energy for this motion. At the maximum height, the speed becomes…

Q: A pair of bullocks exerts a force of 160 N on a plough . The field being ploughed is 18 m long . How…

A:

Q: How much work is done lifting a 35 pound object from the ground to the top of a 30 foot building if…

A:

Q: this is a 23 watt energy efficient light bulb (1bulb) which cost 6.00.the retail price of…

A: The energy consumed by a device is given by E = P×t, where P = the power of the device t = time

Q: The work is done in one second, or one hour, or one year is called the power. True False

A: Explanation :- We know that rate of work done i.e., work done per unit time is termed as power and…

Q: 2.) A charge of G.OX10 C is frans ferred from Infinity to point B. If the work dene by the elechric…

A:

Q: Why did you need to climb the stairs with a constant speed ?

A: Step1 - Understanding some basic concepts of physics that will be useful in this problem.…

Q: How much work is done. on jhe precticle when it reaches x = fro when it reeches x

A: The work done on the particle using F-x graph is given by area under the graph.    W=Work done by…

Q: Calculate the work done when a force of 15 N moves a body by 5 m in its direction.

A: Introduction :  In this question we are provided with value of  force and displacement . with these…

Q: Calculate the work done on a laptop with a mass of 2 kg when it is pushed 0.5 m with a force of 5 N.

A: Given: F = 5 Ns = 0.5 m To find: Work done(W)

Q: There's a good chance you're completing this HW on a laptop. A typical laptop uses about 15 W of…

A: How much energy does the laptop battery hold when it is fully charged? Given, Power(P)=15 W…

Q: As you see in Fig.5, a block of mass m = 0.59 kg is supported by a light rope that wraps around a…

A:

Q: An object of mass 2 kg falls from a height of 5 m under the influence of the force of Earth's…

A:

Q: Compute the electrical energy used by a household whose monthly electrical bill is $43, computed at…

A: Given  Monthly bill = $ 43 Rate = $ 0.05 Mass = 1985 kg

Q: ii) The angle between the vectors A = 4.0î + ĵ and B = −2.03 is: 0= =

A: We know that A.B= ABcosθ So we can derive θ from the above equation.

Q: A 20-kg cannonball is fired straight up in the air from the ground and reaches a final height of 125…

A:

Q: A force of 50 N acts on a body and moves it through a distance of 5 m in the direction of force.…

A:

Q: Help me

A:

Proper Length

The theory of special relativity explains the connection between space and time to objects that move in a straight line at a constant speed. The objects move at the speed of light. When an object approaches light speed, its mass is endless and cannot move faster than light. The most crucial postulate of Einstein's special relativity is that the laws of nature do not change in each frame of reference.