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jek_recluse [69]
3 years ago
15

In a tug of war between Mrs. Brenneman and Mr. Schroedl seems at a standstill. Then Mrs. Brenneman tugs hard giving a force of 4

0 N to the left, while Mr. Schroedl is only pulling 30 N to the right. What is the net force that Mr. Schroedl feels and does he move?
Physics
1 answer:
sergiy2304 [10]3 years ago
4 0
He feels a 10 N to the left force moves. Yes ,he moves.
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A car accelerates uniformly from +10.0 m/s to +40.0 m/s over a distance of 125 m. How long did it take to go that distance? Show
Marizza181 [45]

Answer:

Explanation:

v^2-u^2=2as\\40^2-10^2=2a*125\\1600-100=250a\\a=\frac{1500}{250}=6~m/s^2\\v=u+at\\40=10+6t\\6t=30\\ t=\frac{30}{6}=5 ~s

7 0
3 years ago
A student wearing frictionless in-line skates on a horizontal surface is pushed by a friend with a constant force of 47 N. How f
Novosadov [1.4K]

Answer:

7.53 m

Explanation:

Force, F = 47 N

initial velocity, u = 0

Final kinetic energy, Kf = 354 J

Let the distance traveled by the student is s.

According to the work energy theorem,

Work done by all forces = Change in kinetic energy

Force x distance = final kinetic energy - initial kinetic energy

F x s = kf - ki

47 x s = 354

s = 7.53 m

4 0
3 years ago
A skydiver is falling through the sky. Her speed increases, but she feels air resistance. Which way is her net force vector poin
Ierofanga [76]

Answer:  C

Explanation:

The forces at play, are gravity (which is pointing down[g]) and air resistance(which is pointing up [R]). The net force is [F] is

F = g + (-R) if we choose down as +tive and up as -tive.

Since the skydiver IS falling, it means g is bigger than F, since gi si responsible for pulling down, and this then confirms that the net force will then be pointing downwards.

3 0
3 years ago
A mountain biker takes a jump in a race and goes airborne. The mountain bike is travelling at 10.0 m/s before it goes airborne.
11111nata11111 [884]

Answer:

Explanation:

The formula for angular momentum is

L = mvr where L is the angular momentum, m is the mass of the object, v is the velocity of the object, and r is the radius of the object. The problem we have that prevents us from just throwing those numbers in there is that mass has to be in kg and it's not, and radius has to be in meters and it's not.

Changing the mass to kg:

750 g = .750 kg

Changing the radius to m:

35 cm = .35 m

Now we can fill in the variables with their respective values:

L = .750(10.0)(.35) gives us

L=2.625\frac{kg*m^2}{s}

4 0
3 years ago
I need the definition of these words QUICK!! Please respond. energy
Vlad1618 [11]
Energy: the capacity for vigorous activity; available power.
Kinetic Energy: the energy of a body or a system with respect to the motion of the body or of the particles in the system.
Law of Conservation of Energy: energy cannot be created or destroyed, but it can be transferred or transformed from one form to another.
Potential Energy: the energy of a body or a system with respect to the position of the body or the arrangement of the particles of the system.
Transfer: to move energy from one to another.
Transform: to change in form, appearance, or structure; metamorphose.

next time you need definitions quickly looking up a dictionary would be faster, anyways hopefully this can be helpful.
4 0
3 years ago
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