Question

A stone of mass 100g is thrown upwards with a velocity 30m/s. What is the maximum
potential energy that can be gained by the stone?
(a) 45000J (b) 45J (c) 0J (d) 300J​

Answer 1

Answer:

300J

Step-by-step explanation:

Answer:

ɢᴇɴᴇʀᴀʟʟʏ, ᴀ ᴘᴏᴡᴇʀ sʏsᴛᴇᴍ ᴏᴘᴇʀᴀᴛᴇs ᴜɴᴅᴇʀ ᴀ sᴛᴇᴀᴅʏ-sᴛᴀᴛᴇ ᴄᴏɴᴅɪᴛɪᴏɴ. ʜᴏᴡᴇᴠᴇʀ, ᴛʀᴀɴsɪᴇɴᴛs ᴀʀᴇ ɪɴɪᴛɪᴀᴛᴇᴅ ᴅᴜᴇ ᴛᴏ ᴅɪsᴛᴜʀʙᴀɴᴄᴇs ʟɪᴋᴇ sᴡɪᴛᴄʜɪɴɢ, ᴏᴄᴄᴜʀʀᴇɴᴄᴇ ᴏғ sʜᴏʀᴛ-ᴄɪʀᴄᴜɪᴛ ғᴀᴜʟᴛs ᴏʀ ʟɪɢʜᴛɴɪɴɢ ᴅɪsᴄʜᴀʀɢᴇ ᴡʜɪᴄʜ ᴍᴀʏ ʀᴇsᴜʟᴛ ɪɴ ᴄᴜʀʀᴇɴᴛ ᴀɴᴅ ᴠᴏʟᴛᴀɢᴇs ʜɪɢʜᴇʀ ɪɴ ᴍᴀɢɴɪᴛᴜᴅᴇ ᴀs ᴄᴏᴍᴘᴀʀᴇᴅ ᴛᴏ ɪɴ sᴛᴇᴀᴅʏ-sᴛᴀᴛᴇ ᴄᴏɴᴅɪᴛɪᴏɴs.

hope it's helpful to you.

Answer 2

Solution:-

❀potential energy ( u) = 45 J

• Maximum potential energy means, the body gained the potential energy at the maximum height.
• mass of object = 100 g = 0.1kg
• velocity = 30 m/s

━─━─━─━─━─━─

❀Maximum height :-

• v²-u² = -2gh

➛0²-30² = -2×(10)×(H)

➛0-900 = -20H

➛H = 900/20

➛Height = 45 cm

❀Potential Energy :-

• U = mgh

➛ U = 0.1 × 10 × 45

➛U = 1/10 × 10 × 45

➛U = 1 × 45

↬U = 45 J