Physics

posted by .

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 4.1 km/s while moving it through a distance of only 1.5 cm.
(a) What acceleration does the gun give this object? (b) Over what time interval does the acceleration take place?

• Physics -

You know displacement and final velocity of an object starting from rest.

Use the relevant mechanics equations:
s = (at^2)/2
v = at
Where: s=0.015[m] and v=4100[m/s]

Rearranging the velocity equation to give an expression for time taken (t).

Use this to substitute for t into the displacement equation, and rearrange to obtain an expression for acceleration.

Use given values in this expression to calculate the acceleration (the answer to part a).

Substitute back into the rearranged velocity equation to calculate the time interval (the answer to part b)

Similar Questions

1. physics-energy

A toy gun uses a spring to project a 5.3 g soft rubber sphere vertically. The spring constant is 8.0 N/m, the barrel of the gun is 15 cm long, and a constant frictional force of 0.032 N exists between barrel and projectile. How high …
2. physics

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 2.5 km/s while moving it through a distance of only 1.7 cm. (a) …
3. physics

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 2.5 km/s while moving it through a distance of only 1.9 cm.
4. physics

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 2.7 km/s while moving it through a distance of only 2.5 cm. (a) …
5. science!

1. A plane accelerated from a speed of 2.0 m/s at the rate of 3.0 m/s2 over a distance of 530 m. What is its speed after traveling this distance?
6. physics

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 2.9 km/s, moving it through only 1.6 cm. (a) What acceleration does …
7. Physics

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 4.4 km/s while moving it through a distance of only 1.6 cm. (a) …