# Physics

A ball is thrown toward a cliff of height h with a speed of 31 m/s and an angle of 60∘ above horizontal. It lands on the edge of the cliff 3.4 s later.

What is the ball's impact speed?

1. 👍
2. 👎
3. 👁
1. the horizontal velocity is
... 31 m/s * cos(60º)

the vertical velocity is
... 31 m/s * sin(60º) +
... 3.4 s * -9.8 m/s^2

... a^2 + b^2 = c^2

1. 👍
2. 👎

## Similar Questions

1. ### science

a ball is thrown straight upward and returns to the thrower's hand after 3.00s in the air. A second ball is thrown at an angle of 30.0 deg with the horizontal. At what speed must the second ball be thrown so that it reached the

2. ### phy

A blue ball is thrown upward with an initial speed of 20.6 m/s, from a height of 0.8 meters above the ground. 2.5 seconds after the blue ball is thrown, a red ball is thrown down with an initial speed of 8.2 m/s from a height of

3. ### physics

Two stones are thrown simultaneously, one straight upward from the base of a cliff and the other straight downward from the top of the cliff. The height of the cliff is 5.97 m. The stones are thrown with the same speed of 8.50

4. ### PHYSICS

A ball thrown horizontally with speed vi = 26.0m/s travels a horizontal distance of d = 60.0m before hitting the ground. From what height h was the ball thrown? Which I got this answer below. h= 26.1 m How do I solve for the one

1. ### physics

A football is thrown from the edge of a cliff from a height of 22 m at a velocity of 18 m/s [39degrees above the horizontal]. A player at the bottom of the cliff is 12 m away from the base of the cliff and runs at a maximum speed

2. ### physics

Three identical balls are thrown from a cliff of height, h, above a horizontal plane. One ball is thrown at an angle of 45 degrees above the horizon, the second is thrown horizontally, and the third is thrown at an angle of 30

3. ### physics

A stone is thrown horizontally with an initial speed of 10 m/s from the edge of a cliff. A stop watch measures the stone's trajectory time from the top of the cliff to the bottom to be 4.3 s. What is the height of the cliff?

4. ### physics

A ball is thrown horizontally off the edge of a cliff with an initial speed of 20.4 m/s. (a) How long does it take for the ball to fall to the ground 20.3 m below? 1 s (b) How long would it take for the ball to reach the ground if

1. ### Physics

A ball is thrown toward a cliff of height h with a speed of 27m/s and an angle of 60 degrees above horizontal. It lands on the edge of the cliff 3.0s later. What is the height of the cliff? What is the maximum height of the ball?

2. ### math

Boris throws a ball vertically upward from the top of a cliff. The height of the hall above the base of the cliff is approximated by the model h=65+10t-5t^2, where h is the height in metres and t is the time in seconds. a. How

3. ### Physics ?#2

A ball is dropped from the top of a 53.0m high cliff. At the same time, a carefully aimed stone is thrown straight up from the bottom of the cliff with a speed of 25.0m/s The stone and ball collide part way up. How far above the

4. ### physics

One ball is dropped from a cliff. A second ball is thrown down 1.00 s later with an initial speed of 40.0 ft/s. How long after the second ball is thrown will the second ball overtake the first?
{"ft_lang_label":"__label__en","ft_lang_prob":0.92299765,"math_prob":0.97587436,"size":2954,"snap":"2021-31-2021-39","text_gpt3_token_len":787,"char_repetition_ratio":0.19728814,"word_repetition_ratio":0.06521739,"special_character_ratio":0.26371023,"punctuation_ratio":0.08558559,"nsfw_num_words":0,"has_unicode_error":false,"math_prob_llama3":0.9881484,"pos_list":[0],"im_url_duplicate_count":[null],"WARC_HEADER":"{\"WARC-Type\":\"response\",\"WARC-Date\":\"2021-08-02T23:53:20Z\",\"WARC-Record-ID\":\"<urn:uuid:e0a3502e-e72b-46f2-9501-b671f4a5d0ba>\",\"Content-Length\":\"17581\",\"Content-Type\":\"application/http; msgtype=response\",\"WARC-Warcinfo-ID\":\"<urn:uuid:19014cbc-c1ad-4da7-87d8-f440c28f5dcd>\",\"WARC-Concurrent-To\":\"<urn:uuid:165859d0-4563-4a82-b903-e8a61f38acc4>\",\"WARC-IP-Address\":\"66.228.55.50\",\"WARC-Target-URI\":\"https://www.jiskha.com/questions/1468304/a-ball-is-thrown-toward-a-cliff-of-height-h-with-a-speed-of-31-m-s-and-an-angle-of-60\",\"WARC-Payload-Digest\":\"sha1:KJZPBM6Z66LWOHV6EWZWE4TGJSLK4H3C\",\"WARC-Block-Digest\":\"sha1:4TEMH4BEETQ5XCUVGLGUUTG6ETUEYZ3J\",\"WARC-Identified-Payload-Type\":\"text/html\",\"warc_filename\":\"/cc_download/warc_2021/CC-MAIN-2021-31/CC-MAIN-2021-31_segments_1627046154408.7_warc_CC-MAIN-20210802234539-20210803024539-00052.warc.gz\"}"}