At the same moment, one rock is dropped and one is thrown downward with an initial velocity of 10m/s from the top of a 300m building. How much earlier does the thrown rock strike the ground? (Disregard air resistance)

Acustomer currently has a desktop pc which, among other things, has a 970 gaming atx am3 motherboard, with a pata hard drive that has 150 gb storage and 3600 rpm spindle speed. the customer is complaining that the pata hard drive is running out of storage and is slow. they indicate that they have a budget of $200 and would like this hard drive to last for the next few years. they have several videos and photos that they currently need to store, which will take up at least 100 gb. they anticipate the need to store at least 75 gb of data over the next few years.