Physics, 11.12.2019 03:31 dommalb

A100 ton ship traveling at 1 miles per hour relative hits a tennis ball sized one pound piece of iron. what is the force generated and what would happen to the ship?

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Answer from: trammellb91

The force generated in 1 second of impact is, F = 201161.37 N

The ship slightly slows down and moves forward with velocity V = 9.9 x 10¹⁰ kg miles/hr

Explanation:

Given data,

The mass of the ship, M = 100 ton

= 100,000 kg

The velocity of the ship, V = 1,000,000 miles/hr

The mass of the iron piece, m = 1 lb

= 0.45 kg

The velocity of the iron piece, v = 0

The momentum of the ship,

P = MV

= 100,000 kg x 1,000,000 miles/ hr

= 1 x 10¹¹ kg miles/ hr

The momentum of the iron piece, p = 0

According to the conservation of momentum,

MV + mv = U(M + m)

$U=\frac{MV+mv}{M+m}$

$U=\frac{1\times 10^{11} +0}{100000+0.45}$

U = 999,995.5 miles/hr

Therefore the momentum of the ship after impact,

P₁ = MU

= 100,000 kg x 999,995.5 miles/hr

= 9.9 x 10¹⁰ kg miles/hr

Therefore, the change in the momentum of the ship,

ΔP = P - P₁

= 1 x 10¹¹ - 9.9 x 10¹⁰

= 449997.98 kg miles/hr

= 201161.37 kg m/s

Let the time period of impact be 1 s

Therefore, the force exerted by the ship on the iron is,

F = ΔP / t

= 201161.37 / 1

= 201161.37 N

Hence, the force generated in 1 second of impact is, F = 201161.37 N

The ship slightly slows down and moves forward with velocity V = 9.9 x 10¹⁰ kg miles/hr

Answer from: Quest

Ithink the answer is c but then again i'm probably wrong

Answer from: Quest

Answer

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

explanation

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

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