Answer:
The answer to the question is
A 100 lb person would weigh 300.33 lbf at the upper atmosphere of Jupiter
Explanation:
To solve the question we note that
Mass of object = 100 lb = 45.35924 kg
Mass of Jupiter = 300×Mass of Earth = 300×5.972 × 10²⁴ kg =1.7916×10²⁷ kg
Radius of Jupiter = 10× Radius of Earth = 10×6,371 km = 63710 km
Gravitational constant, G = 6.67408 × 10⁻¹¹ m³ kg-1 s-2
Gravitational force is given by 
Plugging in the values we get
= 
= 1335.93 N
Converting into lbf gives 1335.93 N *0.2248 lbf/N = 300.33 lbf
If the surface between them is the same, then the largest force exerts the body with the largest mass, ie 8 kg
Answer:
Ball A
Explanation:
Let the initial speed of the balls be u .
Angle of projection for ball A = 20°
Angle of projection for ball B = 75°
As we know that at highest point, the ball has only horizontal speed which always remains constant throughout the motion because the acceleration in horizontal direction is zero.
Speed of ball A at highest point = u Cos 20° = 0.94 u
Speed of ball B at highest point = u Cos 75° = 0.26 u
So, the ball A has bigger speed than B.
