Mariner 10 was the first spacecraft to visit Mercury. It showed close-up pictures of the sun’s closest planetary neighbor and also did investigations of Mercury’s environment and surface. The spacecraft had other, lesser-known milestones as well.

Jet Propulsion Laboratory

FAQ – Spacecraft

Surface. As a gas giant, Jupiter doesn’t have a true surface. While a spacecraft would have nowhere to land on Jupiter, it wouldn’t be able to fly through unscathed either. The extreme pressures and temperatures deep inside the planet crush, melt and vaporize spacecraft trying to fly into the planet.

Only one NASA spacecraft has visited Mercury and that was Mariner 10 in 1974 and 1975. It was programmed to fly by the planet three times to take images of its heavily-cratered surface.

Only two probes have ever traveled to the planet. The first was Mariner 10, a spacecraft meant to study both Venus and Mercury. It flew by Mercury three times in 1974 and 1975. Then, in 2004, NASA launched the MESSENGER spacecraft, which successfully inserted itself into Mercury’s orbit in 2011.

the electromagnetic force

Standing on the ground When an object rests on a surface such as the ground, the reaction force from the ground balances its weight. The ground pushes up against the object. The reaction force is what you feel in your feet as you stand still. Without this balancing force you would sink into the ground.

The gravitational force is an interaction between two objects with mass. For a falling ball, the two objects with mass are the Earth and the ball. The strength of this gravitational force is proportional to the product of the two masses, but inversely proportional to the square of the distance between the objects.

strong nuclear force

Fundamental force, also called fundamental interaction, in physics, any of the four basic forces—gravitational, electromagnetic, strong, and weak—that govern how objects or particles interact and how certain particles decay. All the known forces of nature can be traced to these fundamental forces.

The acceleration of an object changes with altitude. The change in gravitational acceleration with distance from the centre of Earth follows an inverse-square law. This means that gravitational acceleration is inversely proportional to the square of the distance from the centre of Earth.

Conclusion. Based on the data, for B every time the height increased the acceleration also increased. For A every time the height increased the acceleration decreased. The speed also increased when the height increased.