# Physics

An object has a mass of 100 lb is projected from the ground level in the air at an angle of 60 degrees with the horizontal direction with a velocity of 72 km/hr. What is the projection velocity in m/s ?

1. 👍
2. 👎
3. 👁
1. 72 km/hr = 72000/3600 = 20 m/s

1. 👍
2. 👎
2. svgugsdvvjv djbvhekwv

1. 👍
2. 👎

## Similar Questions

1. ### physics

an object is projected with a velocity of 10m/s from the ground level at an angle to the vertically, the total time of flight of projectile os 10secs. calculate angle when (g=10m/s) show workings

2. ### Math : Statistics

The formula h=vt−16t^2 gives the height h, in feet, of an object projected into the air with an initial vertical velocity v, in feet per second, after t seconds. If an object is projected upward with an initial velocity of 112

3. ### math

if an object is projected upward from ground level with an initial velocity of 64 ft per sec,its height h in feet t seconds later is h=-16t+64t.after how many seconds is the height 48 ft.

4. ### Math

If a baseball is projected upward from ground level with an initial velocity of 64 feet per second, then its height is a function of time, give by g(t)= -16^2 + 64t. What is the maximum heigh reached by the ball?

1. ### Quadratic Equations

The height of an object projected upward from ground level is given by h=-16t squared + 128t. When will the object be 240 feet above the ground? (Please provide steps/explanation to solve this problem.)

2. ### UTA

An object is thrown downward with an initial speed of 10 m/s from a height of 49 m above the ground. At the same instant, a second object is propelled vertically up from ground level with a speed of 29 m/s . At what height above

3. ### physics

A plane is flying horizontally at a height of 500 m and a constant speed of 429 km/h when an object is projected vertically downward at an initial speed of 35.0 m/s. If air resistance is neglected, the average vertical component

4. ### Math

If an object is propelled upward from ground level with initial velocity of 55 feet per second, it's height h in feet t seconds later is given by the equation H=-16t^2+55t. after how many seconds does the object hit ground?

1. ### Quadratic Equations

The height of an object dropped from a 100-ft-tall building is given by h=-16t squared + 100. When will the object hit the ground? (Please provide steps/explanation to solve this problem.)

2. ### applied mechanics

a body is projected upwards with a velocity of 50 m/s from the top of a tower 100 m high.How long will it take to reach the ground? What will be the velocity with the body strikes the ground?

3. ### science

Density Calculations Density is the mass of an object per unit volume. In this lab, you will be gathering data on the mass and volumes of objects, calculating their densities, and using their density to identify the object. [Block

4. ### Math

An object is projected directly upward from the ground. After t seconds it’s distance in feet above the ground is s=144t-16t^2 How long does it take the object to reach its maximum height? What is the maximum height the object