Coding Exercise: A Feat With Feet

For this program the input is a floating-point number representing a height measured in feet. Write a program that will output the equivalent height in centimetres using the conversion formula 1 foot = 30.48 cm. For example, if the input is 0.5, then the output should be 15.24.

Coding Exercise: Gravity

A parcel is thrown downward at a speed of v m/s from an airplane at altitude 11000 m. As it falls, its distance from the ground is given by the formula -4.9t² - vt + 11000, where t is the time in seconds since it was dropped. Write a program to output the time it will take to reach the ground. The input to your program is the positive floating-point number v. The required time is given by the quadratic formula