Question

An automobile vehicle has a mass of 1500 kg. What must be the force between the vehicle and road if the vehicle is to be stopped with a negative acceleration of 1.7 ms‐² ?​

Answer 1

Answer is in the image

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Answer 2

Step-by-step explanation:

Aᴄᴄᴏʀᴅɪɴɢ ᴛᴏ ɴᴇᴡᴛᴏɴ's sᴇᴄᴏɴᴅ ʟᴀᴡ ᴏғ ᴍᴏᴛɪᴏɴ ,

ғᴏʀᴄᴇ = ᴍᴀss × ᴀᴄᴄᴇʟᴇʀᴀᴛɪᴏɴ

=> ғᴏʀᴄᴇ = 1500 × (-1.7)

=> ғᴏʀᴄᴇ = -2550 N

~ᴀs ᴀᴄᴄᴇʟᴇʀᴀᴛɪᴏɴ ɪs ɴᴇɢᴀᴛɪᴠᴇ sᴏ ᴛʜᴇ ғᴏʀᴄᴇ ᴡɪʟʟ ᴀᴄᴛ ɪɴ ᴏᴘᴘᴏsɪᴛᴇ ᴅɪʀᴇᴄᴛɪᴏɴ, ʙᴜᴛ ɪᴛs ᴍᴀɢɴɪᴛᴜᴅᴇ ᴡɪʟʟ ʀᴇᴍᴀɪɴ sᴀᴍᴇ.