Question

According to the definition of collision in paragraph $l$, which of the following physical process is not a collision?

• A. A projectile exploding into three fragments at its highest point.
• B. Two soap bubbles coalescing to form a bubble of larger radius.
• C. A vertically upward thrown particle changing direction as its highest point.
• D. A piece of magnet thrown on a metallic surface.

Answer 1

The correct option is C A vertically upward thrown particle changing direction as its highest point.

The linear momentum is not conserved in this case.

Hence, the answer is A vertically upward thrown particle changing direction as its highest point.