Answer:
42.96 km/s
Explanation:
From the conservation of Energy
Mass gets cancelled
= Escape velocity of Earth = 11.2 km/s
= Velocity of projectile = 44.4 km/s
The velocity of the spacecraft when it is more than halfway to the star is 42.96 km/s
Any charged object can<span> exert the force upon other objects ... i think tell me if im right</span>
Its vey True trust me on this when I say it is
Answer:
option C
Explanation:
given,
Force by the engine on plane in West direction = 350 N
Frictional force on the runway = 100 N in east
force exerted by the wind = 100 N in east
net force and direction = ?
consider west to be positive and east be negative.
when airplane will be moving there will be frictional as well as wind resistance will be acting in opposite direction of airplane
Net force = 350 N - 100 N - 100 N
= 150 N
as our answer comes out to be positive so the airplane will be moving in West
hence, the correct answer is option C
