Dot Operations in MATLAB

format compact;

%

t = 0: 0.1: 2.0; % time in seconds

m = 0.709; % Mass of capsule in Kilograms

F = 62.9 - 60; % Force in Newtons

v0 = 0; % Initial velocity is zero

%

acc = F./m % Acceleration in meters/second

x = t.*v0 + acc.*t.^2 % Position in meters

%

v = v0 + t.*acc; % Velocity in meters/second

%

a = 2.*(v.*t - x)/t.^2 % Acceleration in meters/square second

%

Table = [t', x', v', a'];

fprintf ('\n');

disp (' Time,s Position,m Velocity,m/s Acceleration,m/s2');

fprintf ('%9.2f s%10.2f m%10.2f m/s%15.3e m/s2 \n', Table')

why calculation for a is wrong?

Answer 1

[madhan ravi]

a = 2.*(v.*t - x)./t.^2 
           %     ^---- missed it

[Nuong Bui]

Thanks a lot.