A footballer kicks a ball at an angle of 45° with the horizontal. If the ball was in the air for 10 s and lands 4000 m away determine its initial speed.

the given statement is true.

sensory memory lasts for a fraction of seconds before the information is lost. it is the shortest -term memory and can be called as an element of memory. example: when we look at something and remember what it looks like, is just a second of observation. it degrades very quickly. it can also be considered as the process of perception rather than considering it as a memory.