what is the escape speed from Earth for a 7500kg spacecraft ?
radius of Earth is 6.38*10m and mass is 5.98*10kg.
Homework Equations
square root of 2GM/R
[b]3. The Attempt at a Solution . I found escape speed to be 3.4*10ms. Is this right?
[b]1. a wire is tied to one end of a rod A and another end B. A 10kg mass is hung from the midpoint of the wire,it forms two base angles of 20 degrees. What is the tension in the wire?
formula: mg/cos20 and am abit stuck
Homework Statement calculate the escape velocity of a 10,500kg spaceship from earth. mass of Earth is 5.98*10kg and radius of the Earth is 6.38*10kg.
elevant equations
2GM/R
The Attempt at a Solution Using the formula i found escape velocity to be 3.464*10m/s. Is this correct?
Homework Statement Hey guys here is my problem:
A bullet is fired horizontally into a wood block attached to a string,the bullet sticks in the block.Calculate the velocity of the bullet if the impact causes the block to swing 10cm above its initial level. Bullet=15g, Block=3kg,Height=10cm...
ok i tried my best. Since the question focuses on equilibrium,we can see that the downward 300N has to balanced by an equal upward force in order to be in equilibrium. so for the first rope i multiplied the 2m by 50which gave me 100N. Which leaves me with the other rope which the weight on it...
hey guys i nid help with this problem: A uniform plank AB is 6m long and has a weight of 300N,
it is supported horizontally at its ends by two vertical ropes. A weight of 50N rests on the plank at C where AC is 2m. Find the tension in each rope. THANKS