The distances(inm) above the ground for a projectile fired vertically upward with a velocity of 4[a]

[a]m/s

m/sas a function of timet(ins)

is given by s=4[a]t4.9t²

Your instructor will provide you witha.Simply replace the letter with the corresponding digit. Do not multiply. For example,

[a]=1, then4[a]

is 41.

Find the answers to these questions.

• findt
• tforv=0
• v=0
• findv
• vfort=4
• t=4
• findv
• vfort=5
• t=5
• What conclusions can you draw?