Not sure if i've writen this program properly

A block with mass M = 2.0kg slides around a vertical circular track with a radius of R. Assume that friction between the block and the track is negligible.

What is the minimum speed the block must have at the top of the track in order to ensure that it does not leave the track at the top?

Write matlab program that prompts user to input the Radius of the circular track and then calculate and display the minimum speed of the block.

You can use the following formula to calculate the minimum speed (v).

G is the gravity = 9.8 m/s2

This is what i've done so far:

radius = input('Input The length of the radius: ')
gravity = [980];
v = sqrt (980*radius);
fprintf ('The minimum speed as %.2f\n' ,v);

Answer 1

[Alan Stevens]

Your code looks ok, except that, since your gravity is in cm/sec^2, it should probably be slightly modified to

radius = input('Input The length of the radius in cm: ')
gravity = 980;
v = sqrt (980*radius);
fprintf ('The minimum speed as %.2f cm/s \n' ,v);