Physics Question

Question

Engineers are developing new types of guns that might someday be used to launch satellites as if they were bullets. One such gun can give a small object a velocity of 3.4 km/s, moving it through only 1.8 cm.

(a) What acceleration does the gun give this object?

(b) Over what time interval does the acceleration take place?

Answer 1

Engineers are developing new types of guns that might someday be used to launch satellites as if they were bullets. One such gun can give a small object a velocity of 3.4 km/s, moving it through only 1.8 cm.

(a) What acceleration does the gun give this object?

(b) Over what time interval does the acceleration take place?

Using

Vf ² = Vi² +2a*S, S = distance moved

Given Vf = 3.4 *10³ m/s Vi = 0 , S = 1.8 * 10 ^-2 m

a = 3.4 *3.4 * 10⁶ / (2*1.8 *10 ^-2 ) m/s2 , Get a from here

Also Vf = Vi +a*t

3.4*10³ = a* t

Plug in a and get t ( time interval of acceleration )