Physics, asked by tanushka71, 3 months ago

a body of mass 50kg is thrown in the upwards direction with velocity 5m/s. it's kinetic energy at the highest point will be?​

Answers

Answered by kinzal
7

Given :-

  • The mass of body = 50 kg
  • Velocity of body = 5 m/s in upward direction

To Find :-

  • it's kinetic energy at the highest point will be

. { Find the value of potential energy }

Explanation :-

➝ \:  \: ᴋɪɴᴇᴛɪᴄ  \:  \:  \: ᴇɴᴇʀɢʏ =  \frac{1}{2} m{v}^{2} \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   \:  \:  \:  \:   \\  \\ ➝.\: \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:    \:  \:  \:  \: \:  \:  \:  \:  \:  \:  =  \frac{1}{2}  \times 50 \times  {(5)}^{2}   \\  \\ ➝. \:  \: \:   \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:    \:  \:  \:  \: \:  \:  \:  \:  \:  \:  = 25 \times 25 \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:

➝.\:  \: \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:    \:  \:  \:  \: \:  \:  \:  \:  \:  \:  = 625 \: ᴊ

  • Now we find a potential energy ,
  • loss Kinetic energy =
  • The, Potential energy of the body is 625 J,

. when it reaches the \\ \\ highest point.

  • Loss in K.E = gain in P.E

 → \:  ᴘᴇ = mgh \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:

➝ \: ᴘᴇ = mgh \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \\  \\ ➝ \: 625 \: ᴊ = 50 \times 9.8 \times h \\  \\ ➝ \: 625 \: ᴊ = 490 \times h \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \\  \\ ➝ \: \frac{625}{490}  = h \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   \:  \\  \\ ➝ \:1.275 = h \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:

I hope it helps you❤️✔️

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