Question

Suppose a soccer player boots the ball from a distance 27.5 m into the goal.

Find the initial speed of the ball if it just passes over the goal, 2.4 m above the ground, given the intitial direction to be 40° above the horizontal.

Step 1

Here the figure shows a ball projected from the origin with initial velocity u at an angle θ with the horizontalHere the figure shows a ball projected from the origin with initial velocity u at an angle θ with the horizontal

Step 2

Which has horizontal and vertical components as u_{x} and u_{y} as shown in the diagram

Step 3

Given,

x=27.5m,

y=2.4m

also, g=9.8m/s2

By using the concept of constant accelerated mot...

Tagged in

Q: On a safari, a team of naturalists sets out toward a research station located 6.1 km away in a direc...

A: Click to see the answer

Q: How many electrons are necessary to produce 1.0 C of negative charge? e = 1.60 × 10-19 C

A: The charge on electron

Q: I need help on p 2.22. I am so confused.

A: Given information:Acceleration of the car (a) = 7g m/s2 = 7 × 9.81 m/s2 = 68.67 m/s2.Initial velocit...

Q: Two very large, nonconducting plastic sheets, each 10.0 cm thick, carry uniform charge densities σ 1...

A: Part A:

Q: A bullet travelig horizontally at a speed of 350m/s hits a board perpendicular to its surface, passe...

A: Using the kinematic equation, write the expression for the displacement.

Q: A horizontal rope with 15 N tension drags a 25 kg box 2.0 m to the left across a horizontal surface....

A: Click to see the answer

Q: At what rate must the potential difference between the plates of a parallel-plate capacitor with a 2...

A: GivenCapacitance C = 2.8 x 10-6 FCurrent I = 1.5 A

Q: A vector →A has a magnitude of 40.0 m and points in a direction 26.0° below the negative x axis. A s...

A: Click to see the answer

Q: two-point charges q1and q2 are held in place 4.50cm apart. Another point charge -1.95 μC of mass 4.0...

A: Click to see the answer

Sorry about that. What wasn’t helpful?