1. You need to know the velocity of the projectile (V0) 2. The expressions for the range and height assume no air resistance (in vacuum) 3. The units must be consistent e.g. metres and g = 9.81 m/s2 Range in metres for 30 degree launch angle = sin 60 x V02 / 9.81 Range in metres for 45 degree launch angle = sin 90 x V02 / 9.81 Range in metres for 60 degree launch angle = sin 120 x V02 / 9.81 Max. height in metres for 30 degree launch angle = (V0 x sin 30)2 / 2g Max. height in metres for 45 degree launch angle = (V0 x sin 45)2 / 2g Max. height in metres for 60 degree launch angle = (V0 x sin 60)2 / 2g 2g is of course 9.81 x 2 = 19.62 m/s2 For interest, at 45 degree launch angle the max. height is 25% of the range.
start 1914 to 1918 == ==
In a non-leap year, including the start and end dates in the calculation, there are 286 days between the two dates. In a leap year, including the start and end dates in the calculation, there are 287 days between the two dates.
Inclusive of the dates given there are 24 days.
2
Viking Lander 1 and Viking Lander 2 Yes, but there are more than that.
Lander
The Viking 1 and Viking 2 missions consisted of both an orbiter and a lander. The landers successfully touched down on the surface of Mars, while the orbiters remained in Mars' orbit to relay communications and data between the landers and Earth.
lander
it was launched in august 20,1975
The first spacecraft to successfully land on Mars was the Viking 1, which touched down in 1976.
NASA first landed a spacecraft on Mars in 1976 with the Viking 1 lander.
The Viking 1 lander reached Mars on July 20, 1976, followed by the Viking 2 lander on September 3, 1976. These missions marked the first successful landings on Mars and provided valuable data about the planet's surface and atmosphere.
NASA first landed a spacecraft on Mars in 1976. The Viking 1 lander successfully touched down on the surface of Mars on July 20, 1976, followed by the Viking 2 lander on September 3, 1976.
The Viking 2 mission was a NASA mission to Mars. It consisted of an orbiter and a lander. The lander carried scientific instruments to study the Martian surface and atmosphere, while the orbiter focused on mapping the planet and relaying data from the lander back to Earth.
The two VIKING probes arrived in Mars orbit in 1976 when they started sending photographs back to Earth. The two orbiters continued sending photographs and the landers conducted experiments on the planet's surface until they failed as follows:Viking 2 Orbiter: July 1978 Viking 2 Lander: April 1980 Viking 1 Orbiter: August 1980 Viking 1 Lander: November 1982.
None, since satellites don't "land", they orbit. There are 6 landers and rovers on the Martian surface, 2 of which were lost at arrival. NASA reports 3 types of Martian Exploration missions: (1) Fly-by missions: Mariner 3, Mariner 4, Mariner 6, Mariner 7 (2) Orbiter missions (the satellites): Mariner 8, Mariner 9, Viking 1, Viking 2, Mars Observer, Mars Global Surveyor, Mars Climate Orbiter, 2001 Mars Odyssey, Mars Express, Mars Reconnaissance Orbiter (3) Lander and Rover missions: Viking 1 Lander, Viking 2 Lander, Pathfinder Rover, Polar Lander (lost), Deep Space 2 (lost), Spirit Rover, Opportunity Rover, Phoenix Mars Science Laboratory Rover is scheduled to launch in 2011.