Answer:
Weight
Explanation:
The spring balance is used to measure weight of an object.
Velocity. Since velocity consists of a speed and a direction, acceleration is a change in speed, or direction, or both.
You are correct. Mountains are part of the lithosphere.
Answer:
The velocity of the arrow after 3 seconds is 30.02 m/s.
Explanation:
It is given that,
An arrow is shot upward on the moon with velocity of 35 m/s, its height after t seconds is given by the equation:

We know that the rate of change of displacement is equal to the velocity of an object.

Velocity of the arrow after 3 seconds will be :

So, the velocity of the arrow after 3 seconds is 30.02 m/s. Hence, this is the required solution.