Question

Which of the following are not correct? (1 Point) The basic unit of time is second. Every object moves with a constant speed The time period of a given pendulum is constant Distances between two cities are measured in kilometres​

Answer 1

Answer:

Here is your answer my friend

Option 2 is incorrect

Every object doesn't move with constant speed

Answer 2

Answer:

Option 2 and 3 are incorrect

Explanation:

option 2: every object doesn't move with constant speed.Speed depends on time and distance covered by it.

option 3: the time period of a pendulum depends on its length and gravitational pull of the given place,so it's not constant either.