Answer: C
Explanation:
Bro this is common sense. Throw something across the room and watch it. It isnt going to be repulsed and fly up. It also isnt going to continue on forever. It will clearly fall and hit the ground
 
        
                    
             
        
        
        
Answer:
option ( a ) is correct . 
Explanation:
Escape velocity on the earth = √ ( 2 GM / R )
where G is universal gravitational constant , M is mass of the earth and R is radius .
V₀ = √ ( 2 GM / R )
escape velocity on the planet where mass is equal is earth's mass and radius is 4 times that of the earth 
Radius of the planet = 4 R 
escape velocity of planet = √ ( 2 GM / 4R )
= .5 x √ ( 2 GM / R )
= .5 V₀
option ( a ) is correct . 
 
        
             
        
        
        
Answer:
Explanation:
A unit used to measure a vector quantity is the
c) Newton 
 
        
             
        
        
        
It might be 4.0 or 2.22344 seconds as velocity speed
        
             
        
        
        
A and B, one wavelength is crest too crest