A gun fires a bullet vertically into a 1.40-kg block of wood at rest on a thin horizontal sheet. If the bullet has a mass of 22.0 g and a speed of 310 m/s
A) How high will the block rise into the air after the bullet becomes embedded in it?
B) What is the initial momentum of the system?
C) What is the speed of the block just after the bullet becomes embedded in it?

(a) The maximum height reached by the bullet block system is 1.18 m.

(b) The initial momentum of the system is 6.82 kgm/s.

(c) The speed of the block just after the bullet becomes embedded in it is 4.8 m/s.

The given parameters;

The final velocity of the bullet block system is calculated as;

The maximum height reached by the bullet block system is calculated as;

The initial momentum of the system is calculated as;

The speed of the block just after the bullet becomes embedded in it = 4.8 m/s.

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A. 1.172 metres

B. 6.82 Ns

C. 4.796 m/s

Explanation:

The total initial momentum is gotten by multiplying the mass and initial velocity of the both bodies.

The 1.40 kg block is at rest so velocity is zero and has no momentum.

The bullet of mass 22 g = 0.022 kg with velocity of 310 m/s

Momentum = 310*0.022

Momentum = 6.82 Ns.

If the bullet gets embedded they will both have common velocity v

6.82 = (0.022+1.40)v

6.82 = 1.422v

V = 6.82/1.422

V = 4.796 m/s

How high the block will rise after the bullet is embedded is given by

H = (U²Sin²tita)/2g

Where tita is 90°

H = (4.796² * sin²(90))/(2*9.81)

H =( 23.001616*1)/19.62

H = 1.172 metres

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.