A cart is given an initial velocity of 5.0 m/s and experiences a constant accele

Question

A cart is given an initial velocity of 5.0 m/s and experiences a constant acceleration of 2.5 m/s^2. what is the magnitude of the displacement during the first 6.0 s of its motio? 100 m 55 m 10 m 75m 66m A bail is thrown up in the air with an initial velocity of 26.95 m/s upward. How long does it take the ball return to the ground? 1.38 s 1.3s 12.3 s 5.5.0 s 2s At the top of a cliff 100 m high, Raoul throws a rock upward with velocity 20 m/s. How much later should he drop a second r rest so both rocks arrive simultaneously at the bottom of the cliff? 0.81 s 2.48 s 1.78 s 3.76 s 5.05 s A runner of mass 56.1 kg starts from rest and accelerates with a constant acceleration of 123 m/s^2: until she reaches a velocity m/s. She that continues naming at this constant velocity. How long in seconds docs the runner take to travel 123 m? 22.04 28.32 20 26.19 24.12 A ball is launched from ground level at 30 m/s at an angle of 35deg. above the horizontal. How far does it go before it is at g level again 28 m 42 m 128 m 14 m 86m A jet airliner moving a 500 mph due can moves into a region where the wind is blowing at 120 mph in a direction 30 degree north What is the new velocity and direction of the aircraft? 550 mph, 622 deg N of E 620 mph, 7.10 deg N of E 400 mph, 8 deg N of E 607 mkph, 5.67 deg N of E 380 mph, 150 deg The following force vectors act on an object: 25 Newtons at 45 degree north of east 50 Newtons at 30 degree 30 degree south of east. Which of the following represents the magnitude of the its angle relative to the easterly direction? 75.0 Newtons 15 deg 61.4 Newtons 21.8 deg

Explanation / Answer

1)(D)75 m

explanation:

from eqn of motion

S = ut + 1/2 at^2

S = 5 x 6 + 1/2 x 2.5 x 6^2 = 75 m

Hence, (D)75 m is the correct answer.

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