3 years ago

What is the force that causes an object to have a curved path during projectile motion .

Physics

1 answer:

never [62]3 years ago

4 0

Answer:

Gravity is the force that causes an object to have a curved path during projectile motion .

Explanation:

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4 years ago

Which statement is true about vectors?

lora16 [44]

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3 years ago

A 78-kg skydiver has a speed of 62 m/s , what is the kinetic energy?

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Answer:

149,916J

Explanation:

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3 years ago

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A cyclist intends to cycle up a 7.70o hill whose vertical height is 126m. Assuming the mass of bicycle plus person is 75.0kg, ca

Ksivusya [100]

Answer:

92704.5 J

596.44737 N

Explanation:

m = Mass of person + bicycle = 75 kg

g = Acceleration due to gravity = 9.81 m/s²

h = Vertical height = 126 m

$\theta$ = Angle = 7.7°

d = Diameter = 0.388 m

Work done against gravity is given by

$P=mgh\\\Rightarrow P=75\times 9.81\times 126\\\Rightarrow P=92704.5\ J$

Work done is 92704.5 J

Force required is given by

$F=\dfrac{mgrsin\theta}{\pi d}\\\Rightarrow F=\dfrac{75\times 9.81\times sin7.7\times 5.12}{\pi\times 0.388}\\\Rightarrow F=596.44737\ N$

The force is 596.44737 N

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3 years ago