Question

2. Explain where and why metallic material (any one) and non-metallic material (any
one) have been used in your home.

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Answer 1

Answer:

Explanation:

The metallic materials are used -

1.for support eg. iron

2.in kitchens as utensils to cook food eg. steel, aluminum

3.for making wires eg. copper

.The non metallic materials are used-

1.in switch boards to prevent shocks eg. PVC

2.to make handles of utensils

mark me as brainliest

Answer 2

Explanation:

Projectile motion is a form of motion experienced by an object or particle (a projectile) that is projected near the Earth's surface and moves along a curved path under the action of gravity only (in particular, the effects of air resistance are assumed to be negligible). This curved path was shown by Galileo to be a parabola, but may also be a line in the special case when it is thrown directly upwards. The study of such motions is called ballistics, and such a trajectory is a ballistic trajectory. The only force of significance that acts on the object is gravity, which acts downward, thus imparting to the object a downward acceleration. Because of the object's inertia, no external horizontal force is needed to maintain the horizontal velocity component of the object.