Well, where is the table at?
If you, don't have the table then try going with D. Valley. I hope this helps :)
Explanation :
First considering Sid's statements, the description of tangential speed and centripetal acceleration are correct.
But for Centripetal force, the description is incorrect because centripetal force is always perpendicular to the velocity.
Sid's error can be corrected by the statement (b) i.e. "Centripetal force is perpendicular to the velocity of the satellite".
B) Ice floats on top of liquid water and D) liquid is less dense than ice. The rest of the answers aren’t true because ice never sinks to the bottom of the water since ice is more dense than water.
The ball's position vector has components
where is the acceleration due to gravity. The ball hits the ground when :
The ball's velocity vector has components
so that after 1.22 s, the velocity vector is
and the magnitude is
Answer:
t = 2.94 seconds
Explanation:
Given that,
The initial velocity of the football, u = 0
The final velocity of the football, u = 25 m/s
Acceleration, a = 8.5 m/s²
We need to find the time for which the football is accelerating. Let the time is t. We know that,
So, the football is accelerating for 2.94 seconds.