Horizontal component of the projectiles velocity

Reference no: EM13647929

1. A projectile is fired with an initial speed of 1000 m/s at anangle of 37o above the horizontal. If air resistance is neglected, the horizontal component of the projectile’s velocity after 20 s is approximately ...?

2. A child is sitting on the seat of a swing with ropes 10 m long. Her father pulls the swing back until the ropes make a 37o angle with the vertical andthen releases the swing. If air resistance is neglected, what is the speed of thechild at the bottom of the arc of the swing when the ropes are vertical?

Reference no: EM13647929

Questions Cloud

What is the length in space of such wave trains : Light is emitted from an ordinary lightbulb filament in wave-trainbursts about 10^{ - 8} {\rm{s}} in duration. What is the length in space of such wave trains?

A circular saw is powered by a motor : A circular saw is powered by a motor. When the saw is used to cutwood, the wood exerts a torque of 0.80N · m on the saw blade. If the blade rotateswith a constant angular velocity of 20 rad/s the work done on the blade by the motor in 1.0 min is:

What is the total mechanical energy of the system : A pendulum consists of a 3.1 kg stone swinging on a 3.8 m string of negligible mass. The stone has a speed of 7.9 m/s when it passesits lowest point. (a) What is the speed when the string is at 57° to the vertical?

Two blocks are connected by a light weight-flexible cord : Two blocks are connected by a light weight, flexible cord that passes over a frictionless pulley. if m1 is 3.7 kg and m2 is 9.0kg, and block 2 is initially at rest 130 cm above the floor, howlong does it take block 2 to reach the floor? Please mak..

Horizontal component of the projectiles velocity : A projectile is fired with an initial speed of 1000 m/s at anangle of 37o above the horizontal. If air resistance is neglected, the horizontalcomponent of the projectile’s velocity after 20 s is approximately ...?

What force does the pin apply to the rod initally : long thin uniform rod lies motionless in fric free horizontalplane along y-axis. It's pinned to the ground with a friction freepivot. A force F is applied at 90deg. to the bar and at its veryend. IF the mass is 1kg and force is 2N:

A converging lens has a focal length : A converging lens has a focal length of 0.060m. An object is located 0.030 m to the left of this lens. A secondconverging lens has the same focal length as the first one and islocated 0.120 m to the right of it. Relative to the second lens,where is t..

Photographer usesa telephoto lens : From a distance of 65 m, a photographer usesa telephoto lens (f = 300.0 mm) to take a picture of acharging rhinoceros. How far from the rhinoceros would the photographer have to be to record an image of the same size using alens whose focal length is..

To focus a camera on objects at different distances : To focus a camera on objects at different distances, the converging lens is moved toward or awayfrom the film, so a sharp image always falls on the film.

User Account

All Pages