Initial speed of the object, u = 0 m/s (starts from rest)
time, t = 10 seconds
acceleration of free falling object, a = 9.8 m/s2
v = u + at = 9.8*10 = 98 m/s
The acceleration of the object after 5 seconds is equal to g = 9.8 m/s2
2. An object, initially at rest, starts to fall freely. What will be the speed of...
Consider a freely falling object. a. What is the acceleration (in m/s?) after 5 seconds of fall? b. What is the acceleration (in m/s2) after 10 seconds of fall? c. What is the velocity (in m/s) after 5 seconds of fall? d. What is the velocity (in m/s) of 10 seconds of fall?
A 100 kg object experience a net force of (120i+140j) N, it is initially at rest, and its position starts at the origin. What is the object's acceleration? After 4 seconds, what is the velocity of this object? What is its position after 5 seconds (x,y), distance from the origin and angle defined from the positive x-axis?
3. An object freely falls down starting at rest from a vertical eliff and gains the final speed 30 m/s. Find time of free fall of this object. Find height of the cliff.
1. A small coin, initially at rest, begins falling. If the clock starts when the coin begins to fall, what is the magnitude of the coin's displacement between ?1=0.404 s and ?2=0.673 s? Δ?= 2. You attach a meter stick to an oak tree, such that the top of the meter stick is 1.67meters above the ground. Later, an acorn falls from somewhere higher up in the tree. If the acorn takes 0.121 seconds to pass the length of the...
A CD starts from rest at an angular acceleration of 3 radians/ s2. (a) Find the angular speed after 10 seconds. (b) Through what angle does the CD turn in this time of 10 seconds?
An object with mass m is initially at rest at the origin z-0. At time t-0 it starts to accelerate with a changing acceleration along the +z direction. At time t = T it is at the point z=:T and its speed is measured as e(T) = vr 6. Find the for tr and τ in terms of F. m, and T
2. A certain freely falling object, released from rest, requires 2.00 s to travel the last 30.5 m before it hits the ground. a. Find the velocity of the object when it is 30.5 m above the ground. (Indicate the direction with the sign of your answer. Let the positive direction be upward.) 2A Answer = -5.45 m/s b. Find the total distance the object travels during the fall
A car on a straight level road, starts from rest and accelerates to a speed of 1,846 ft/'s in 49 seconds. What is the car's average acceleration in ft/s??
Constant Acceleration Worksheet 1. A ball starts from rest & rolls down an incline for 6 cm in the 1st second. Find: a) The average speed, V, for the first second (Vad/t b) The initial speed, V, If Vav (v vV2, what is vr, the final speed after 1 sec? In the next second from t1s to t 2s, the ball rolls 18 cm. Find c) The average speed, Vav, for the interval from 1-2 seconds (a d/t) d) The...
A speed-time graph is shown below: Speed vs. Time Speed (cm/s) -> Time (seconds) What is the average acceleration of the object represented in the graph above over the eight seconds? 0.5 cm/s 1.0 cm/s2 1.5 cm/s2 2.0 cm/s2 An object starts at rest. Its acceleration over 30 seconds is shown in the graph below: Acceleration vs. Time Acceleration (m/s) 153 Time is) 205 In the graph above, what is the instantaneous speed of the object after the first five...