🔭 physics

1. **Problem 1:** Determine when the object passes through its initial position again using the velocity vs. time graph. 2. The position of the object is the integral (area under t

1. **Problem:** A ball is dropped from the top of a building and strikes the ground with a speed of 30 m/s. We need to find the height of the building. 2. **Formula:** We use the k

1. **Problem statement:** A child whirls a toy tied to a string in a horizontal circle of radius $R$ with period $T$. Find the magnitude of the acceleration of the toy. 2. **Formul

1. **Problem Statement:** A child whirls a toy tied to a string in a horizontal circle of radius $R$ with a period $T$. Find the magnitude of the acceleration of the toy. 2. **Form

1. **State the problem:** We are given a polygon ABCDEF with forces acting on its sides, and we need to find the resultant force when point P is an alternative point on side BA. 2.

1. **State the problem:** A drop of water falls from the bottom of a charged conducting sphere of radius 20 cm. The sphere initially carries a charge of $1.8 \times 10^{-6}$ C, and

1. **Problem statement:** A car moving at a speed of 126 km/h is brought to a stop within 200 m. We need to find (i) the retardation (deceleration) of the car and (ii) the time it

1. **Problem statement:** A van travels from station A to B at 40 km/hr and returns from B to A at 120 km/hr. We need to calculate: (i) Average speed for the round trip.

1. **State the problem:** Calculate the value of the fraction $$\frac{4.5 \times 10^{-16} \text{ N}}{9.11 \times 10^{-31} \text{ kg}}$$. 2. **Formula and rules:** When dividing num

1. **State the problem:** An object of mass 5 kg is dropped from a height of 100 m. We need to find the height at which its kinetic energy (KE) is twice its potential energy (PE).

1. **State the problem:** We want to find the acceleration $a$ using the kinematic equation $$v^2 = v_0^2 + 2ad$$ where $v$ is the final velocity, $v_0$ is the initial velocity, $a

1. **Problem Statement:** Two light rays emitted by a light source are reflected by two plane mirrors M_1 and M_2 arranged at a right angle (90°). One ray reflects off M_1 at an an

1. **Problem statement:** A girl stands 1.5 m from a wall with her eyes 1.6 m above the ground. A light source is on the wall 3 m horizontally from the girl and 2 m above the groun

1. **State the problem:** We have an electric bulb marked 220V and 100W. We need to find:

1. Let's start by stating the problem: We want to prove the approximate formula for the wave speed $v$ of a sinusoidal wave on a string, given by $$v \approx \sqrt{\frac{gL}{2\pi}}

1. **Problem Statement:** Prove the approximate formula for the wave speed on a string or in a wave system: $$v \approx \sqrt{\frac{gL}{2\pi}}$$ where $v$ is the wave speed, $g$ is

1. **Problem Statement:** We want to prove the approximate wave speed formula $$v \approx \sqrt{\frac{gL}{2\pi}}$$ where $v$ is wave speed, $g$ is gravitational acceleration, and $

1. The problem is to understand the basics of physics and how to approach solving physics problems. 2. Physics involves studying the natural laws that govern the behavior of matter

1. **Problem Statement:** We need to determine if the sailboat with a draft of 2 m can safely exit the harbour at 6:30 p.m. given the tide heights at 2 p.m. (high tide at 10 m) and

1. **State the problem:** A car travels at a speed of 50 kilometers per hour. We want to find out how far it will travel in 5 hours. 2. **Formula used:** Distance traveled is calcu

1. **Problem Statement:** A car accelerates uniformly from 18 km/h to 36 km/h in 5 seconds. We need to find: i) The acceleration