A man runs 800m due North in 100 seconds, followed by 400m due South in 80 seconds. Calculate, a. His average speed b. His average velocity c. His change in velocity for the whole journey

/in /by

A man runs 800m due North in 100 seconds, followed by 400m due South in 80 seconds. Calculate,

a. His average speed

b. His average velocity

c. His change in velocity for the whole journey

You might also like
A ball is thrown from the top of a cliff 20m high with a horizontal velocity of 10m/s.
A bullet of mass 0.005 kg is fired from a gun of mass 0.5 kg. If the muzzle velocity of the bullet is 300 m/s, determine the recoil velocity of the gun.
A gas in a cylinder occupies a volume of 465 ml when at a pressure equivalent to 725 mm of mercury. If the temperature is held constant, what will be the volume of the gas when the pressure on it is raised to 825 mm of mercury?
A tape is pulled steadily through a ticker-timer of frequency 50 Hz. Given the outcome below, calculate the velocity with which the tape is pulled.
Radium undergoes radioactive decay by emitting an alpha particle to form a daughter nuclide Q as in the reaction: Determine the values of: (a) x …………………………………….. .. (1 mark) (b) y
Draw a well labeled diagram of a P-N junction in forward bias mode.
Figure 2 shows circular waves originating from the principal focus F of a concave mirror and moving towards the mirror. Complete the diagram to show the reflected waves
The current of electrons hitting the screen of a cathode ray oscilloscope is 2.0 X 10 “ A . Determine the number of electrons that strike the screen each second. (take charge qfun electron as 1.6 >< 107” C