Aswing is made from a rope that will tolerate a maximum tension of 5.07 x 102 n without breaking. initially, the swing hangs vertically. the swing is then pulled back at an angle of 58.6 ° with respect to the vertical and released from rest. what is the mass of the heaviest person who can ride the swing?

m = 19.16 kg

Explanation:

from the question we have:

maximum tension (T) = 5.07 x 10^{2} N

angle formed (θ) = 58.6 degrees

acceleration due to gravity (g) = 9.8 m/s^{2}

length of the rope (r) = ?

maximum mass (m) =?

we can get the maximum height from the equation below

T -  mg = \frac{mv^{2}}{r}

But we need to find the velocity, and we can do so by applying the conservation of energy

mgh = 0.5mv^{2}

gh =0.5v^{2}

h is the vertical height of the rope = r x sin 58.6

h = 0.85r

now we have

9.8 x 0.85r = 0.5 x v^{2}

v^{2} = 16.66r

now we can substitute the value of v^{2} into T -  mg = \frac{mv^{2}}{r}

T -  mg = \frac{m × 16.66r}{r}

(5.07 x 10^{2}) -  9.8m = m × 16.66

(5.07 x 10^{2}) = 9.8m + 16.66m

(5.07 x 10^{2}) = 26.46m

m = 19.16 kg

specific latent heat of fusion, lf, of a substance is defined as the amount of heat required to change a unit mass of the substance from solid to liquid state, without any change in the temperature.

explanation:

answer: 802.3 kilo joules of energy represents 191.75 kilo calorie of energy.

explanation:

energy released during combustion of one mole methane = 802.3 kilo joules

if 1 kilo joule = 0.239006   kilo calorie

then ,802.3 kilo joule will be = 802.30.239006 kilo calorie

802.3 kilo joule = 191.75 kilo calorie

hence, the energy in kilo calorie is 191.75 kilo calorie.