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MariettaO [177]
3 years ago
15

The current world-record motorcycle jump is 77.0 m, set by Jason Renie. Assume that he left the take-off ramp at 11.0° to the ho

rizontal and that the take-off and landing heights are the same. Neglecting air drag, determine his take-off speed.
Physics
1 answer:
Dafna1 [17]3 years ago
7 0

Answer:

44.9 m/s

Explanation:

Initial velocity = v

Angle at which the projectile is shot at = θ = 11°

g = Acceleration due to gravity = 9.81 m/s²

Range of projectile

R=\frac {v^{2}\sin 2\theta}{g}\\\Rightarrow v=\sqrt{\frac{Rg}{sin 2\theta}}\\\Rightarrow v=\sqrt{\frac{77\times 9.81}{sin (2\times 11)}}=44.9\\\Rightarrow v=44.9\ m/s

The take off speed of Jason Renie's motorcycle was 44.9 m/s

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Calculate the required rate of return for Climax Inc., assuming that (1) investors expect a 4.0% rate of inflation in the future
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Answer:

Required rate of return = 18.5 %

Explanation:

given,                            

rate of inflection = 4 %

risk free rate = 3 %                      

market risk premium = 5 %                    

firm has a beta  = 2.30                                  

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Nominal risk free rate = risk free rate  + inflation

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The distance between two particles is 2 centimeters. If the distance is increased to 4 centimeters, the force will be ?
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Answer:

The new force is 1/4 of the previous force.

Explanation:

Given

Initial\ Distance = 2cm ---- r_1

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Required

Determine the new force

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The initial force F1 is:

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