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Nadya [2.5K]
3 years ago
13

The ball with a mass of 1.5 kilograms is tied to the end of

Biology
2 answers:
Hunter-Best [27]3 years ago
4 0

Solve the

potential energy at point B


PE = mgh


Where m is

the mass


G is the

acceleration due to gravity 9.8 m/s2


H is the height


PE = ( 1.5

kg) ( 9.8 m/s2) (0.5 m)


PE = 7.35 J



Solve the

velocity using the


KE = 0.5mv^2


Where ke is

the kinetic energy


M is the

mass


V is the

velocity


Since all

energy is converted to KE


So KE = PE



7.35 = 0.53(1.5)

v^2


V = 3.13 m/s


Read more on Brainly.com - brainly.com/question/2554528#readmore

Tanzania [10]3 years ago
4 0

Explanation:

It is given that,

Mass of the ball, m = 1.5 kg

The ball is pulled to a height of 0.5 meters and then released.

The potential energy at point B is given by :

E_p=m\times g\times h

E_p=1.5\times 9.8\times 0.5

E_p=7.35\ J

To find the velocity at point A, it is required to use the conservation of energy as :

mgh=\dfrac{1}{2}mv^2

v=\sqrt{2gh}

v=\sqrt{2\times 9.8\times 0.5}

v = 3.13 m/s

Hence, this is the required solution.

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