10/29/20

Would this statement be true or false?
If velocity is negative, and acceleration is negative, the object is speeding up.
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10/29/20

How would answer this question?
A car traveling to the right with a velocity of 30 m/s slows to a stop as it approached a red light. The car's acceleration is pointed to the right.a) trueb)false
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10/29/20

If you hold the force constant and change the mass, what happens to the acceleration?
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10/29/20

Roller coaster help
roller coaster has a mass of 840 kg. It is launched horizontally from a giant spring with spring constant 31,000 N/m into a frictionless vertical loop-the-loop track of radius 6.3 m. What is the... more
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10/29/20

Physics Speed Equation
A toy gun fires at 5.93 g projectile disc by using a compressed spring (K=2.18×10^3 N/M) and 19.1 cm long barrel. As the disc travels through the barrel, it experience a constant frictional force... more
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10/29/20

How far does a car and a jet travel?
How far does a car going 23 m/s travel in 9 s? How far would a jet going 165 m/s travel in 9 s?
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10/29/20

A passenger jet flies from one airport to another 1,233 miles away in 2.2 h.
A passenger jet flies from one airport to another 1,233 miles away in 2.2 h. Find its average speed.
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10/29/20

Can someone please help me I'm stuck on this question?
A 1.20-kg object is held 1.00 m above a relaxed, massless vertical spring with a force constant of 315 N/m. The object is dropped onto the spring.(a) How far does the object compress the... more
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10/29/20

How can I solve this please help?
A 19.0-kg cannonball is fired from a cannon with muzzle speed of 1 200 m/s at an angle of 38.0° with the horizontal. A second ball is fired with the same initial speed at an angle of 90.0°. Let y =... more
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10/29/20

Physics Kinematic Equations
1. the finish line is 100m away from the starting line, you manage to get there in 4 seconds (10 seconds faster than your friend) what was your average velocity during the race?for this question... more
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10/29/20

What is the equation of the line that passes through the point (6,8) and is perpendicular to a line with equation y= 3/2x +5
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10/29/20

Write the equation of the line that passes through the given point and is parallel to the given line. IN SLOPE INTERCEPT FORM.

Write the equation of the line that passes through the given point and is parallel to the given line. IN SLOPE INTERCEPT FORM.
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10/29/20

The rock has a mass of 0.6 kilograms and the string is 1.14 meters long. It is spinning at 1.2 radians per second.
The rock has a mass of 0.6 kilograms and the string is 1.14 meters long. It is spinning at 1.2 radians per second.What is the force Jim must apply on the string to keep the rock spinning at that... more
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10/28/20

find another point on the line that is parallel to the given line and passes through the point (3,0)
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10/28/20

3.5 radians converted to degress
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10/28/20

Kinematics Equation
An object is dropped from a 68 m tall building. How long does it take to reach the ground?
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10/28/20

Kinematics Equation

An object, moving with constant acceleration and zero initial velocity, travels 58 m in 3.5 s. What is the magnitude of its acceleration?
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10/28/20

Kinematics Equation
An object is moving with an initial velocity of 30 m/s. It is then subject to a constant acceleration of 4.5 m/s^2 for 9 s. How far will it have traveled during the time of its acceleration?
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10/28/20

Kinematics Equation

An object is shot upwards, from the ground, with an initial velocity of 70 m/s. How high will it be after 3 s? 
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10/28/20

An astronaut tosses a ball upwards on an unknown planet with no atmosphere. The astronaut gives the ball a speed of 5.0 m/s. It takes 5.0 seconds to return to the height it was tossed from.

What is the acceleration of gravity on this unknown planet? How high did the ball rise above the astronaut’s hand?
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10/28/20

B is between segment AC. If AB = (4x+8), BC = (6x-6) and AC = 162, find the measure of x. Which equation would you use?
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10/28/20

free body diagram
Didn't get a answer when i first posted it. A block with a mass of m rests on a rough surface and is subject to two forces acting on it. The first force is directed in the negative x-direction. The... more
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10/28/20

About Work question

The force measured in newtons on a particle is described by 5x^4+2 at a point x meters along the x-axis. Find the work done in moving the particle from the origin to a distance of 2 meters.
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10/28/20

Free Body Diagram

A block with a mass of m rests on a rough surface and is subject to two forces acting on it. The first force is directed in the negative x-direction. The second acts on the body at an... more
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10/28/20

How far from her toes is her centre of gravity?

This athlete found that 0.72 of her weight was supported by her forearms and 0.28 by her toes, i.e. the total normal forces on her forearms and toes respectively are 0.720w and 0.280w, where w is... more
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