What happens when a penny is dropped from a height of 20 meters? It falls at a constant velocity. The force of gravity causes it to accelerate. Its mass doubles for every second it falls. It changes direction every 9.8 meters.

When a penny is dropped from a height of 20 meters, it will achieve an acceleration. Therefore the velocity does not remain constant

Step-by-step explanation:

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)

c is the answer

step-by-step explanation: