/* Disclamer : Many Maaaany Bugs ///Equation of Motion/// I don't know when it will be useful for me but it could be useful for others. This progam can calculate Initial Velocity , Final Velocity , Acceleration , Distance Travelled and Time taken by using using the Equations of motions. I made it as compact and somewhat readable. I could have made it more compact but I was too lazy. The Input format and keywords are as Follows: Keywords-> 1) find - This keyword is used to specify what you want to find. Please use it only once as my progam cannot do complex computation right now. 2) none - This keyword represents that the value is not listed or given as per the question. Only use it once ⭐Format->⭐ In the imput box the format is like this: (Initial Velocity) (Final Velocity) (Distance travelled) (Acceleration) (Time Taken) ✨Upvote if you like it and Downvote if you dislike it.✨ Example Question: An object moving has the final velocity of 150 m/s. If the acceleration was 25 m/s^2 and the time taken to reach that velocity is 2 seconds. Find the initial velocity. Here: Initial vel. = (we have to find it so) find Final vel. = 150 Acceleration = 25 Time Taken = 2 Distance travelled = (not given here so) none So the format will be: find 150 none 25 2 You can edit the code and make it better and post it int the comments. Thank you for your time.😄 */ #include #include #include #include // First equation of motion namespace eq1 { void find_u(double v, double a, double t, double& u); void find_v(double u, double a, double t, double& v); void find_a(double u, double v, double t, double& a); void find_t(double u, double v, double a, double& t); } // Second equation of motion namespace eq2 { void find_u(double v, double s, double a, double& u); void find_v(double u, double s, double a, double& v); void find_s(double u, double v, double a, double& s); void find_a(double u, double v, double s, double& a); } // Third equation of motion namespace eq3 { void find_u(double s, double a, double t, double& u); void find_s(double u, double a, double t, double& s); void find_a(double u, double s, double t, double& a); void find_t(double u, double s, double a, double& t); } ////Main Function//// int main() { int valueGiven[5] = {}; // u , v , s , a , t double actualValues[6] = {}; std::string valueInput; ////For Input//// for (int arrayCounter = 1; arrayCounter < 6; arrayCounter++) { std::cin >> valueInput; if (valueInput == "find") { valueGiven[arrayCounter - 1] = 0; actualValues[arrayCounter] = 0.0; } else if (valueInput == "none") { valueGiven[arrayCounter - 1] = -1; actualValues[arrayCounter] = 0.0; } else { valueGiven[arrayCounter - 1] = 1; std::istringstream(valueInput) >> actualValues[arrayCounter]; } } //////////////// //Checking if u , v and a is given or not// if (valueGiven[0] == -1 || valueGiven[3] == -1) { std::cout << "\n\nIntial and Acceleration value is compulsory\n"; return 2; } //////////////// /////Assinging someVariables so that it is easier to use through pointers/// double* u = &actualValues[1]; double* v = &actualValues[2]; double* s = &actualValues[3]; double* a = &actualValues[4]; double* t = &actualValues[5]; ///////////////// //Deciding which equation of Motion should be chosen// //If first equation is needed if (valueGiven[2] == -1) { if (valueGiven[0] == 0) eq1::find_u(*v , *a , *t , *u); else if (valueGiven[1] == 0) eq1::find_v(*u , *a , *t , *v); else if (valueGiven[3] == 0) eq1::find_a(*u , *v , *t , *a); else if (valueGiven[4] == 0) eq1::find_t(*u , *v , *a , *t); } //If second equation is needed else if (valueGiven[4] == -1) { if (valueGiven[0] == 0) eq2::find_u(*v , *s , *a , *t); else if (valueGiven[1] == 0) eq2::find_v(*u , *s , *a , *v); else if (valueGiven[2] == 0) eq2::find_s(*u , *v , *a , *s); else if (valueGiven[3] == 0) eq2::find_a(*u , *v , *s , *a); } //If third equation is needed else if (valueGiven[1] == -1) { if (valueGiven[0] == 0) eq3::find_u(*s , *a , *t , *u); else if (valueGiven[2] == 0) eq3::find_s(*u , *a , *t , *s); else if (valueGiven[3] == 0) eq3::find_a(*u , *s , *t , *a); else if (valueGiven[4] == 0) eq3::find_t(*u , *s , *a , *t); } ///////////////// ///Printing the result// for (int finalValueCount = 0 ; finalValueCount < 5 ; finalValueCount++) { if (valueGiven[finalValueCount] != -1) { if (finalValueCount == 0) std::cout << "Initial Velocity(u): " << *u << "m/s\n"; else if (finalValueCount == 1) std::cout << "Final Velocity(v): " << *v << "m/s\n"; else if (finalValueCount == 2) std::cout << "Distance travelled(s): " << *s << "m\n"; else if (finalValueCount == 3) std::cout << "Acceleration(a): " << *a << "m/s^2\n"; else if (finalValueCount == 4) std::cout << "Time taken(t): " << *t << "s\n"; } } return 0; } /////////////// // First equation of motion namespace eq1 { void find_u(double v, double a, double t, double& u) { u = v - a * t; } void find_v(double u, double a, double t, double& v) { v = u + a * t; } void find_a(double u, double v, double t, double& a) { a = (v - u) / t; } void find_t(double u, double v, double a, double& t) { t = (v - u) / a; } } // Second equation of motion namespace eq2 { void find_u(double v, double s, double a, double& u) { u = std::sqrt(std::pow(v, 2) - (2 * (a * s))); } void find_v(double u, double s, double a, double& v) { v = std::sqrt(2 * (a * s) - std::pow(u, 2)); } void find_s(double u, double v, double a, double& s) { s = (std::pow(v, 2) - std::pow(u, 2)) / (2 * a); } void find_a(double u, double v, double s, double& a) { a = (std::pow(v, 2) - std::pow(u, 2)) / (2 * s); } } // Third equation of motion namespace eq3 { void find_u(double s, double a, double t, double& u) { u = (s - ((a * std::pow(t, 2)) / 2)) / t; } void find_s(double u, double a, double t, double& s) { s = (u * t) + ((a * std::pow(t, 2)) / 2); } void find_a(double u, double s, double t, double& a) { a = (2 * (s - (u * t))) / std::pow(t, 2); } void find_t(double u, double s, double a, double& t) { t = std::sqrt((2 * (s - (u * t))) / a); } } // EOF

Equation Of Motions