Question

d) A body is projected downward at an angle of 30° with the horizontal from the top of a building 170 m high. Its initial speed is 40 m/s. Determine: i) the velocity of the projectile just before it hits the ground. [2 marks] ii) how long it will take before striking the ground. [2 marks]

Name: d) A body is projected downward at an angle of 30° with the horizontal from the top of a building 170 m high. Its initial speed is 40 m/s. Determine: i) the velocity of the projectile just before it hits the ground. [2 marks] ii) how long it will take before striking the ground. [2 marks]
Uploaded: 2024-05-10T12:13:56-08:00
Duration: 3 min
Channel: Adi S
Description: d) A body is projected downward at an angle of 30° with the horizontal from the top of a building 170 m high. Its initial speed is 40 m/s. Determine: i) the velocity of the projectile just before it hits the ground. [2 marks] ii) how long it will take before striking the ground. [2 marks]

          d) A body is projected downward at an angle of 30° with the horizontal from the top of a building 170 m high. Its initial speed is 40 m/s. Determine: i) the velocity of the projectile just before it hits the ground. [2 marks] ii) how long it will take before striking the ground. [2 marks]

d) A body is projected downward at an angle of 30° with the horizontal from the top of a building 170 m high. Its initial speed is 40 m/s. Determine: i) the velocity of the projectile just before it hits the ground. [2 marks] ii) how long it will take before striking the ground. [2 marks]

Added by Eva M.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Adi S

05/10/2024

Step 1

We can find the horizontal and vertical components of the initial velocity. The horizontal component of the initial velocity is given by: $v_x = v_0 \cos(30^\circ)$ $v_x = 40 \cos(30^\circ)$ $v_x = 40 \times \frac{\sqrt{3}}{2}$ $v_x = 20\sqrt{3}$ m/s The vertical Show more…

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A body is projected downward at an angle of 30° with the horizontal from the top of a building 170 m high. Its initial speed is 40 m/s. Determine: the velocity of the projectile just before it hits the ground. [2 marks] how long it will take before striking the ground. [2 marks]