2. Which of the following are not correct?
The basic unit of time is second.
(ii) Every object moves with a constant speed.
(v) The speed of a train is expressed in m/h.
Motion of your hands while running.
Motion of a horse pulling a cart on a straight road
(v) Motion of the hammer of an electric bell.
(iii) Distances between two cities are measured in kilometres
Motion of a child in a merry-go-round.
Motion of a train on a straight bridge.
(iv) The time period of a given pendulum is constant.
Answers
Answer:
Answering their kids' questions about sex is a responsibility that many parents dread. Otherwise confident moms and dads often feel tongue-tied and awkward when it comes to talking about puberty and where babies come from.
But the subject shouldn't be avoided. Parents can help foster healthy feelings about sex if they answer kids' questions in an age-appropriate way.
When do kids start becoming curious about their bodies?
From as early as infancy, kids are interested in learning about their own bodies. They notice the differences between boys and girls and are naturally curious.
Answer:
Every object moves with constant speed.
Explanation:
This is a wrong statement because every object has its own type of speed. Example: A car's initial velocity is 0 ms-1. It's velocity changes time by time. So, by this example we can say that not every object needs to move with constant speed.