Well I don’t see options but any object in motion has kinetic energy.
B.
A star is not a vector quantity.
Neither is temperature.
Answer:

Explanation:
on the specific planet ,
weight =400 N acts downwards
astronaut gives an upward force of 462 N
according to the Newton's second law of motion ,
applying Force= mass * acceleration upwards
462 - 400 =5 * a
acceleration =
Gravity is greater when there is more mass and less distance between two given objects.
The answer is 490
Weight = mass * g
Weight on Earth = 50 * 9.81 =
490.5 ~ 490