# Physics

posted by .

How much work is needed to stop a 20g bullet moving with a speed of 150ms-1

• Physics -

W=ΔKE= mv²/2 =0.02•150²/2=…

• Physics -

m-20g-0.02kg
v-150ms/1
k.e-1/2mv2
k.e-1/2*0.02*150*150
1/2 to decimal-
0.5*0.02*150*150
225joules

• Physics -

225j

## Respond to this Question

 First Name School Subject Your Answer

## Similar Questions

1. ### physics

a bullet of mass 0.06kg is fired into a block of wood. if the bullet is moving at 330 m/s as it enters the block and takes 0.15m to stop, find: A) the avg force required to stop the mullet b) the impulse exerted by the wood on the …
2. ### physics

A bullet with mass m = 5.21 g is moving horizontally with a speed v=367 m/s when it strikes a block of hardened steel with mass M = 14.8 kg(initially at rest). The bullet bounces o the block in a perfectly elastic collision. (a) What …
3. ### physics

How much work is needed to stop a 20g bullet moving with speed of 150m/s
4. ### physics

how much work is needed to stop a 20g bullet moving with a speed of 150 ms-1
5. ### Physic

A bullet strikes a ballistic pendulum whose target block has a mass of 4kg. The block is observed to rise a distance of 3cm, and the bullet is weighed and found to have a mass of 20g. What is the speed of the bullet when it strikes …
6. ### PHYSICS

what is the kinetic energy of a 20.0g bullet moving with a speed of 150m/s?
7. ### Physics

how much work is needed to stop a 20kg bullet moving with a speed of 150m/s?
8. ### Physics

A bullet of mass 200 grams is forced with work speed of 400 m/s of it is stopped in 100 m, Find: a.) KE b.) Force needed to stop it
9. ### physics

How much work isneeded to stop a 20g bullet moving with a speed of 150m/s
10. ### D S S LIMAWA MINNA NIGER STATE

how many work is needed to stop a 20g bullet moving witi speed of 150ms'1

More Similar Questions