A cannon ball is fired horizontally at a speed of 1000.0m/s from a height of 200.0m
a.) How long does it take for the ball to land?
6.39s
b.) Where does it land?
6390m
c.) What is its velocity when it lands?
I get the a and b part...but i just don't understand what am i...
Question:
A 16.2 kg object is pulled along a frictionless horizontal surface by a horizontal net force of 10.2N. What is the normal force acting on the object?
Answer:
Fn= 16.2*9.8
=158.8
I am sure do i have to ignore the 10.2N force...
Thank you for helping
A 15.0N object is moved horizontally 3.00m across a level floor using a horizontal force of 60.0N. how much work is done on this object?
I am not sure should I use 15.0N or 60.0N to find the work
Thanks for helping!
Since I have a textbook without that ans for a certain section, that's why I want to check did I do these questions in the right way. Please tell me the right answers and show me the steps if I got them wrong. Thank you :wink:
This is the question:
The instrument attached to a weather...
I am using the Gravitational constant in "the Newton's law of universal gravitation Equation"
I just want to know is the Gravitational constant always = 6.67*10^-11
Thanks so much!
A 4.0 kg and 6.0 kg masses are connected by a string over a pulley. What is the tension in the String?
I have no idea how to find the tension using the F=ma formula
Can someone please help me?
Please also explain tension in terms of the word meaning in Physics.
Thank you very much!