Question

ᴀɴ ᴏʙᴊᴇᴄᴛ ɪs ᴅʀᴏᴘᴘᴇᴅ ғʀᴏᴍ ᴀ ʙᴜɪʟᴅɪɴɢ ᴏғ ʜᴇɪɢʜᴛ 125ᴍ. ғɪɴᴅ ᴛɪᴍᴇ ᴛᴀᴋᴇɴ ʙʏ ᴏʙᴊᴇᴄᴛ ᴛᴏ ᴛʀᴀᴠᴇʟ ʟᴀsᴛ 1/4ᴛʜ ᴏғ ɪᴛs ᴅɪsᴛᴀɴᴄᴇ ? ⚠️ᴅᴏɴ'ᴛ sᴘᴀᴍ ⚠️ ⚠️ ғᴜʟʟ ᴇxᴘʟᴀɴᴀᴛɪᴏɴ ɴᴇᴇᴅᴇᴅ ⚠️​

Answer 1

Answer:

Given :-

Initial Velocity, u = 5 m/s

Final Velocity, v = 10 m/s

Time, t = 4 s

Mass, m = 8 kg

To find :-

Magnitude of applied force?

Solution :-

We know that,

★ Acceleration = (final velocity - initial velocity)/time

➻ a = (v - u)/t

➻ a = (10 - 5)/4

➻ a = 5/4

➻ a = 1.25 m/s²

━━━━━━━━━━━━━━━━━━━━━━━━━

Now, Finding force applied on object,

We know that,

★ Force = Mass × Acceleration

➻ F = m × a

➻ F = 8 × 1.25

➻ F = 10 N

∴ Hence, 10 N constant force is applied on an object.

Answer 2

Given :-

Initial Velocity, u = 5 m/s

Final Velocity, v = 10 m/s

Time, t = 4 s

Mass, m = 8 kg

To find :-

Magnitude of applied force?

Solution :-

We know that,

★ Acceleration = (final velocity - initial velocity)/time

➻ a = (v - u)/t

➻ a = (10 - 5)/4

➻ a = 5/4

➻ a = 1.25 m/s²

━━━━━━━━━━━━━━━━━━━━━━━━━

Now, Finding force applied on object,

We know that,

★ Force = Mass × Acceleration

➻ F = m × a

➻ F = 8 × 1.25

➻ F = 10 N

∴ Hence, 10 N constant force is applied on an object.