An object is thrown vertically into the air?

An object is thrown vertically into the air. Because of air resistance, the time for its descent will be:





longer than the ascent time.


shorter than the ascent time.


equal to the ascent time.


not enough information given to sayAn object is thrown vertically into the air?
equal to the ascent time.An object is thrown vertically into the air?
In general the descent time will be longer. When the object is launched at some speed v it is slowed down by gravity and air resistance. When it stops at its highest point and begins to fall gravity works to speed it up while air resistance fights to slow it down.





Thus on the way up both are working to slow it down (maybe it slow down and stop quickly). On the way down the two fight each other and the object accelerates slower (thus taking longer to return to the surface).





I hope that helps!