Question

Which statement about a moving object is incorrect?
A. when an object is accelerating all the forces acting on it are equal.

B. when an object is moving at steady speed the resulting force acting on it must equal zero.

C. when an object is moving at a steady speed the resistance forces acting on it must equal zero.

D. when an object is accelerating there must be resultant force acting on it.

Answer 1

Answer

B. ᴡʜᴇɴ ᴀɴ ᴏʙᴊᴇᴄᴛ ɪs ᴍᴏᴠɪɴɢ ᴀᴛ sᴛᴇᴀᴅʏ sᴘᴇᴇᴅ ᴛʜᴇ ʀᴇsᴜʟᴛɪɴɢ ғᴏʀᴄᴇ ᴀᴄᴛɪɴɢ ᴏɴ ɪᴛ ᴍᴜsᴛ ᴇϙᴜᴀʟ ᴢᴇʀᴏ.