Physics, 15.10.2019 02:10 toxsicity

Arobot probe on mars drops a camera off a cliff. on mars the acceleration of gravity is 3.7 m/s2. the camera is moving down at a speed of 61.0 m/s when it strikes the ground.
a. find the height from which the camera fell.
b. find the velocity with which it hits the ground.

Answers: 2

Show answers

Answers

Answer from: clariii59

x=502.837m

v=61m/S

Explanation:

A body that moves with constant acceleration means that it moves in "a uniformly accelerated motion", which means that if the velocity is plotted with respect to time we will find a line and its slope will be the value of the acceleration, it determines how much it changes the speed with respect to time.

When performing a mathematical demonstration, it is found that the equations that define this movement are as follows.

Vf=Vo+a.t (1)

{Vf^{2}-Vo^2}/{2.a} =X (2)

X=Xo+ VoT+0.5at^{2} (3)

X=(Vf+Vo)T/2 (4)

Where

Vf = final speed

Vo = Initial speed

T = time

A = acceleration

X = displacement

In conclusion to solve any problem related to a body that moves with constant acceleration we use the 3 above equations and use algebra to solve

for the part a we can use the ecuation number 2

a=3.7m/s^2

Vf=61m/s

Vo=0m/s

$\frac{Vf^{2}-Vo^2}{2.a} =X \\$

$\frac{61^{2}-0^2}{2(3.7)} =X\\x=502.84m\\$

for the part b

the problem indicates that the speed with which it touches the ground is 61m / s

Answer from: Quest

Iknow the first part it is the average star i am not 100% sure

Answer from: Quest

m₁v₁ + m₂v₂ = (m₁ + m₂)vmomentum is conserved.the left-hand side of the equation represents the momentum in the system before the collision.the right-hand side represents the momentum in the system after the collisionm₁ and v₁ represents the mass and the velocity of the physics blockm₂ and v₂ represents the mass and velocity of the ball of puttyv represents the final velocity of the combined mass.the question states the two masses stick together. they combined mass has its own velocity with the body mass the sum of the two objects' massestheir combined momentum is (m₁ + m₂)vto find the magitude of (m₁ + m₂)v, we need to add the vectors on the left-hand side of the equation: m₁v₁ + m₂v₂.note the diagram. i have positioned the vectors in accordance with their directions.the magnitude of the resultant can be calculated using the pythagorean theorem since this is a right triangle situation (north and west are perpendicular)|(m₁ + m₂)v| = √[ (m₁v₁)² + (m₂v₂)² ]|(m₁ + m₂)v| = √[ (1.5kg·8.0m/s)² + (0.40kg·20m/s)² ]|(m₁ + m₂)v| = 14.4 kg m/sfor two significant figures (assuming that 20m/s is two), this rounds to 14 kg m/s

Another question on Physics

Physics, 22.06.2019 04:50

Waves that cause the most damage during an earthquake are a. surface waves c. s waves b. p waves d. ocean waves

Answers: 2

Answer

Physics, 22.06.2019 12:20

A2.0 μf capacitor and a 4.0 μf capacitor are connected in series across a 0.827-kv potential. the charged capacitors are then disconnected from the source and connected to each other with terminals of like sign together. find the voltage across each capacitor.

Answers: 2

Answer

Physics, 22.06.2019 16:40

Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.

Answers: 2

Answer

Physics, 22.06.2019 20:50

Suppose that a mass of 2 kg is attached a spring whose spring constant is 50. the system is damped such that b = 12 . the mass is set in motion with an initial velocity of -8 m/s at a position 0 meters from equilibrium. set up and solve a differential equation that models this motion. write your solution in the form a cos ( ω t − α ) where α is a positive number. use your solution to fill in the information below: what is the amplitude of the motion? what is the value of ω ? what is the phase shift?

Answers: 1

Answer

You know the right answer?

Arobot probe on mars drops a camera off a cliff. on mars the acceleration of gravity is 3.7 m/s2. th...

Questions