1) The weight of a rover on Mars is 3080 N. Calculate its weight on the Earth\'s
ID: 1355025 • Letter: 1
Question
1) The weight of a rover on Mars is 3080 N. Calculate its weight on the Earth's surface. (You will need to look up Mars' gravitational acceleration)?
2) You are about to launch a 393 g firework into the air. The package of the firework says it produces 36 N of thrust. Assuming you launch the firework straight up and neglecting air resistance, calculate the magnitude of the firework's acceleration after you launch it.
3)An electric car is capable of doing 0-100 km/hr (roughly 0-60 mi/hr) in 4.60 seconds. If the car has a mass of 2390 kg, and the car accelerates constantly, what force is needed to produce its acceleration?
Explanation / Answer
Weight of rover on Mars = 3080 N
Gravitational Acceleration in mars = 3.71 m/s^2
Weight = Mass * Gravitational Acceleration
Mass of rover = 3080 / 3.71
Mass of rover = 830 Kg
Weight on Earth Surface = Mass of rover * Gravitational Acceleration in Earth
Weight on Earth Surface = 830 * 9.8 N
Weight on Earth Surface = 8134 N
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