Answer:![2.05 m/s^2](https://tex.z-dn.net/?f=2.05%20m%2Fs%5E2)
Explanation:
Given
Mass of crate is ![m=25\ kg](https://tex.z-dn.net/?f=m%3D25%5C%20kg)
coefficient of kinetic friction ![\mu _k=0.25](https://tex.z-dn.net/?f=%5Cmu%20_k%3D0.25)
Larry Pushes with a force of
to the right
Moe pushes with a force of
to the left
Curly Pushes downward with a force of ![F_c=150\ N](https://tex.z-dn.net/?f=F_c%3D150%5C%20N)
Net Normal reaction on the ground is
![N=mg+F_c](https://tex.z-dn.net/?f=N%3Dmg%2BF_c)
![N=25\times 9.8+150=395\ N](https://tex.z-dn.net/?f=N%3D25%5Ctimes%209.8%2B150%3D395%5C%20N)
Friction force is given by ![f=\mu _k\cdot N](https://tex.z-dn.net/?f=f%3D%5Cmu%20_k%5Ccdot%20N)
![f=0.25\times 395](https://tex.z-dn.net/?f=f%3D0.25%5Ctimes%20395)
![f=98.75\ N](https://tex.z-dn.net/?f=f%3D98.75%5C%20N)
Friction Force always opposes the motion
Net Horizontal force on the box is
![F_{net}=400-250-98.75](https://tex.z-dn.net/?f=F_%7Bnet%7D%3D400-250-98.75)
![F_{net}=51.25\ N](https://tex.z-dn.net/?f=F_%7Bnet%7D%3D51.25%5C%20N)
acceleration is given by
![a=\frac{F_{net}}{m}](https://tex.z-dn.net/?f=a%3D%5Cfrac%7BF_%7Bnet%7D%7D%7Bm%7D)
![a=\frac{51.25}{25}](https://tex.z-dn.net/?f=a%3D%5Cfrac%7B51.25%7D%7B25%7D)
![a=2.05\ m/s^2](https://tex.z-dn.net/?f=a%3D2.05%5C%20m%2Fs%5E2)
Answer:
Attractive Property – Magnet
Explanation:
attracts ferromagnetic materials like iron, cobalt, and nickel. Repulsive Properties – Like magnetic poles repel each other and unlike magnetic poles attract each other. Directive Property – A freely suspended magnet always points in a north-south direction.
Answer:
Kinetic energyof the cart is 2450Joule
Answer:
A joule equals the amount of work done on an object when a force <u>of</u><u> </u><u>1</u><u> </u><u>Newton</u><u> </u> displaces that object <u>1</u><u> </u><u>metre</u>