Answer:
Instantaneous speed is the exact speed that an object in motion has at a given instant in time.
Instantaneous velocity is the exact velocity that an object in motion has at a given instant in time.
Explanation:
Instantaneous velocity tells how fast an object is moving anywhere along its path.
Instantaneous speed at an instant is equal to the magnitude of the instantaneous velocity at that instant.
Answer:
Explanation:
Let consider that the person hit the ground in the negative direction. The physical model for the impact is modelled after the Impact Theorem:
The impact is:
The force of impact is derived as follows:
Answer: GREATER
Explanation:when elevator does not move it reads weight of the person . when elevator moves up let apparent weight be F . W acts downwards so net force is F-W
HENCE
F-W =ma
F= ma+W
AS a= 1 m/s^2
F = m (1)+W
HENCE GREATER
Answer:
1. Revolve around a point
2. Formed from dust and gas particles
3. Exoplanets and associated star orbit a common center of mass
4. Composed of gases found in Jupiter and Saturn
