An object is initially moving in the  direction when a force…

An object is initially moving in the  direction when a force causes it to move in the  direction.  In which quadrant does the velocity vector point after some time moving in the new direction??  That is, the first motion was westward and the second motion is now northward

Lewis Hamilton realized he was late to his race and started…

Lewis Hamilton realized he was late to his race and started running towards the track. As he approached the stairs down to the pit, he grabs for his keys, fumbles them and gives them a downward (vertical only) velocity of 4.9 m/s.  The keys fall from a height of 9.8 m straight down before they hit the ground below.  How long did they take to hit the ground??

Complete the missing line so that all positive values in x r…

Complete the missing line so that all positive values in x remain unchanged and all other values become zero. Guideline: Do not put spaces between operators. ================================== function y=getpositive(x) [Fill up This Line! ] end ====================================   For example, if: x=[-3 5 -2 8 0 4] the function should return y=[0 5 0 8 0 4]