an anti aircraft shell is fired vertically upward with a muzzle velocity of 200 m/sec. Compute theinstantaneous velocities at the ends of 30 & 50 seconds.

Question

an anti aircraft shell  is  fired  vertically  upward  with  a  muzzle  velocity   of  200 m/sec.  Compute  theinstantaneous  velocities  at  the  ends   of  30  &  50  seconds.

drwls · Accepted Answer

At t=30s, the velocity would be
V = 200 - 30g = -94 m/s

It will be on the way back down but will not have hit the ground yet.

At t = 50 s, V = 200 - 490 = -290 m/s
but it will have hit the ground before that, when V = -200 m/s.

Are you sure the muzzle velocity was not higher than 200 m/s? A typical value is 1000m/s

Daniel · Answer

Are U Sure

daniel · Answer

your madness is too much. i ask a question u are asking me my response

Kelvin Samuel · Answer

yes i am sure that it is the muzzle velocity of 1000ms-1.

Kanyin · Answer

Pls help me solve this question Using the sAmerican information above, when will it's height be 37.5km and interpret your result

Abdulrafiu Bilal · Answer

The muzzle velocity is 100m/s