🔭 physics

1. **Problem statement:** A ladder of length 10 m and weight 500 N leans against a vertical wall, resting on a horizontal surface. The coefficient of friction at both contact point

1. Problem 10: Find the acceleration of a block sliding down an inclined plane at 30° with kinetic friction coefficient 0.2. 2. Formula: The acceleration $a$ down the incline is gi

1. **Problem Statement:** We have a uniform rod AB weighing 14 N with a 14 N weight fixed at point B. We want to find the weight $\varepsilon$ to be hung at point A so that the rod

1. **Problem Statement:** A ruler AB is suspended from points A and D by two vertical ropes with tensions $T_1$ and $T_2$. Two weights, 6 N and 4 N, are hanging from points C and B

1. **State the problem:** We need to find how many superhorses are required to power 100 houses, each using 1000 watts per day. 2. **Given information:**

1. **Problem statement:** A particle is projected horizontally at 20 m/sec from a height of 7.84 m. We need to find the time taken to reach the surface and the horizontal distance

1. The problem asks to identify which statements about a system of particles are incorrect. 2. Given definitions:

1. Problem 9: A body of mass 10 kg moves with constant velocity 5 m/s on a horizontal surface with coefficient of sliding friction 0.2. (i) Find the horizontal force to maintain co

1. Problem: A drone of mass 1.2 kg hovers with four propellers. Each propeller pushes 0.4 kg of air downwards per second. Find the speed of air leaving each propeller. 2. Formula:

1. **Problem statement:** Two blocks K and L slide towards each other on a frictionless surface and collide. The contact time during collision is 0.084 s. After collision, block L

1. Nyatakan masalah: Eriq mengayuh basikal sejauh 6 km dalam 20 minit, berhenti 4 minit, kemudian mengayuh lagi 4 km dalam 16 minit. Cari laju purata dalam km/j. 2. Formula laju pu

1. **Problem statement:** A golf ball is struck from point A with an initial velocity of 80 ft/s. We need to find the speed at which it strikes the ground at point B and the total

1. **Problem Statement:** Find the algebraic measure of the moment of a force of magnitude 200 N about point O. 2. **Given Data:**

1. **State the problem:** We need to find the time $t$ it takes for an object to fall 1,024 feet given the formula for distance fallen: $$s = 16t^2$$ 2. **Write the formula and plu

1. **Problem Statement:** Calculate the velocity at $t=5.4$ s, friction at $t=5.4$ s, time to start motion, and acceleration at $t=1.8$ s given a force $P=49t$ N applied at an angl

1. **Stating the problem:** We have five forces acting at different angles from a single point with magnitudes and directions: - $4$ N at $120^\circ$

1. **Problem Statement:** Solve the system of equations for the unknown currents $I_1$, $I_2$, and $I_3$ in the circuit from Exercise 5 using matrix methods. 2. **Set up the equati

1. **Problem statement:** A 9 kg particle is on a smooth table connected by a light string over a smooth pulley to a 1 kg particle hanging vertically. The system is released from r

1. مسئله: محاسبه پتانسیل داخل کره با شعاع $R=1$ که هیچ باری در داخل کره وجود ندارد و پتانسیل روی سطح کره به صورت $f(\phi) = \cos 2\phi$ داده شده است. 2. فرمول پایه: پتانسیل داخل کر

1. مسئله: محاسبه پتانسیل داخل کره‌ای به شعاع $R=1$ است که هیچ بار الکتریکی در داخل آن وجود ندارد و پتانسیل روی سطح کره به صورت تابعی از زاویه $C6$ داده شده است. 2. فرمول کلی: برای

1. **Nyatakan masalah:** Kita diberi gelombang harmonik mudah yang merambat ke arah negatif paksi $x$ dengan frekuensi sudut $\omega$ dan halaju gelombang $u$. Pada masa $t=\frac{T