1. A person with a black belt in karate has a fist that has a mass of 0.70 kg. Starting from rest, this fist attains a velocity of 8.0 m/s in 0.15 s. What is the magnitude of the average net force applied to the fist to achieve this level of performance?

Q: 25. The Hōküle'a voyaging canoe is headed due north at a speed of 5 knots. The current is flowing at…

A: speed of the person vp=5 knotsspeed of the current vc=1 knot

Q: 11. Consider two vectors; A = 2.00i + 6.00j and B = 3.00i – 2.00j Calculate the magnitude and…

A: A→ = 2.00i^ + 6.00j^B→ = 3.00i^ - 2.00j^

Q: A roller coaster travels 21.4m at an angle of 24.0 degrees above the horizontal. How far does it…

A: given-          distance traveled by roller coaster = 21.4 m           angle made above horizontal =…

Q: в (15.0 m) D (10.0 m) 30.0 53.0 25.0 Č(12.0 m) Ä (8.00 m)

A:

Q: Describe in detail what A chosen arbitrary direction means.

A:

Q: 7. A cannonball is shot with an initial velocity of 350 m/s off of the top of a cliff that is 75 m…

A: Given: The initial velocity of the cannonball is u = 350 m/s The height of the cliff is h = 75 m The…

Q: a typhoon is moving at 55 km/h in the direction 40° south of east. find the horizontal and vertical…

A:

Q: At a horizontal distance of 45 m from a tree, the angle of elevation to the top of the tree is 26°.…

A: Given Angle of elevation = 26° Horizontal distance = 45 m We have to calculate the height how tall…

Q: A scuba diver dove 4 m under the water and then went down another 8 m. What was the diver's final…

A: Total depth (D) = Initial dive (d1) + Final Dive (d2)

Q: 2. An arrow is shot into the air with a velocity of 100 m/s at an elevation of 450. Find a. the time…

A: Given: The intial velocity of the arrow is 100 m/s. The angle of the projection is 45o.

Q: ject is displaced fre s back toward the

A: Given: Mass of object is 5 kg k=1000 N/m Spring portion is 50 cm horizontal or 5 m initial velocity…

Q: 5. An airplane heading northwest [N45°W] at 500 km/h encounters a wind of 120 km/h from the…

A: The question states that an airplane is heading northwest (N 45°W) at a speed of 500 km/h. It…

Q: Find the direction of vector A relative to the + x-axis if Ax = 3.0 m and Ay = -5.0 m.

A: The direction of vector A relative to the + x-Axis is 59.036°

Q: An airplane is heading due south at a speed of 590 km/h   . If a wind begins blowing from the…

A:

Q: An airplane heads due south at a speed of 300 km/ h and meets a wind from the west at 100 km/ h.…

A:

Q: Yelena, Natasha, and the "Red Guardian" are looking for Melina's house. They walk 6.0 km [N], then…

A:

Q: Candice throws a tennis ball up a hill at an angle of 55o (55 degrees) above the horizontal at 20…

A:

Q: 1) Leaving camp, a hiker walks 5.00 km in a direction 40.0° N of W, then an additional 10.0 km at…

A: Displacement can be defined as the change in the position of an object. And its magnitude gives the…

Q: Whats the resultant velocity of an airplane that normally flies at 235 lm/h if it encountered a 60…

A:

Q: Suppose you are headed toward a p!stray 57 m high. If the angle of the elevation to the top of the…

A: We know, the tangent ratio of an angle in a right triangle is the ratio of lengths of the opposite…

Q: A person who is 35 ft east of you runs north at 16 ft/s. At what angle north of east would you throw…

A:

Q: A falcon is flying at a bearing of 199o with an airspeed of 190 miles per hour. The wind is blowing…

A: we need to use vector addition. We can break down the velocity of the falcon and the velocity of the…

Q: A plane is flying with an airspeed of 150 miles per hour and heading 135°. The wind currents are…

A: Given that, The plane is flying with speed 150 miles per hour at an angle 135o counterclockwise. In…

Q: A ship leaves a dock at 13 mph. After an hour, it is seen from a lighthouse 12 miles east of the…

A:

Q: Add the following two force vectors by any method: 30 pounds at 30degrees and 20 pounds at 140…

A:

Q: An arrow is straight up into the air.  When it reaches its highest point in the air,

A: When an arrow is shot straight up in the air, there are two factors which oppose the motion of the…

Q: A missile is moving 1350 m/s at a 25.0° angle. It needs to hit a target 23,500 m away in a 55.0°…

A: See below

Q: 10. A bomber in level flight, flying at 92.0 m/s, releases a bomb at a height of 1950 m. (a) How…

A:

Q: 11. A plane flying for 20 minutes in a 40 km/h wind blowing towards 25° south of east, is over a…

A: Consider  and  be the velocity of the plane with respect to air and ground respectively. Let the…

Q: A high-wire artist ascends to a platform by walking 205 feet on an inclined wire that makes an angle…

A:

Q: H2. A simple pendulum has a particle of mass m at the end of a light rod of length 1. The other end…

A: We start by finding the acceleration of the particle using the given formula: a = (dot r - r dot…

Q: 16. A plane is traveling with an air velocity of 225 km/h [50.0° N of W] when it experiences a 50.0…

A: Given data: The velocity of the plane is, vp = 225 km/hr The direction of the plane is, θp= 500…

Q: 4. A physics student is building a tower from which he will launch a ball at 32 m/s at an angle of…

A: The ball is thrown at an angle, θ=25o Initial velocity of the ball, u=32 m/s  Horizontal range of…

Q: Vectors may exist in between ____ axes (i.e. northwest NW and southeast SE) and may have either the…

A:

Q: An airplane is sighted due cast from a radar station at an elevation of 40 degrees on a height of…

A:

Q: calculate the torque due to friction acting on the rotor.

A: The cross-section view of rotor with the respective forces is given as follows: The magnitude of…

Q: e Skater with a mass of 50 kg is at rest at the top of a ramp and has 4000 J of GPE, how high up…

A: Given data:  Mass (m) = 50 kg GPE = 4000 J Required: The height of the ramp

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: