Answer:
1}can displacement be zero even when distance is not zero? Give example.
2}how can you get speed of an object from its distance time graph ?
3}how can you get distance of an object from its speed time graph ?
4}can a body has zero velocity and still acceleration? give example .
5}is it possible in straight line motion of particle having zero speed and a non zero velocity? explain .
Explanation:
Hi friend,1).yes,displacement can be zero even when distance is not zeroexample :- when a body travels in circular path , after covering a circle the distance cannot be zero,but its displacement is zero..2).by finding the slope of distance time graph,we can find the speed of the body.3).by finding the integrating of speed time graph ,we can find the distance.4).yes,a body can have zero velocity and still acceleration.example- in vertically upward projected body,at its highest point,the velocity becomes zero but still acceleration due to gravity acts on it 5).no its not possible ..when the speed is zero..its velocity will be zero
Answer:
47 m/s
Explanation:
golf club mass, mc = 180 g
golf ball mass, mb = 46 g
initial golf club speed, vc1 = 47 m/s
final golf club speed, vc2 = 35 m/s
initial golf ball speed, vb1 = 0 m/s
final golf ball speed, vb2 = ? m/s
The total momentum is conserved, then:
mc*vc1 + mb*vb1 = mc*vc2 + mb*vb2
Replacing with data and solving (dimension are omitted):
180*47 + 46*0 = 180*35 + 46*vb2
vb2 = (180*47 - 180*35)/46
vb2 = 47 m/s
Answer:
Average speed = 40.50 km/h (Approx)
Explanation:
Distance = Time × Speed
Total distance = (40/60) 50 + (8/60) 70 + (35/60) 35
Total distance = 33.33 km + 9.33 km + 20.17 km
Total distance = 62.80 km
Average speed = Total distance / Total time taken
Average speed = 62.80 / [(40+8+35+40)/60]
Average speed = 62.80 / 1.55
Average speed = 40.50 km/h (Approx)
You're talking about a <em>tornado</em>.
It's not so much the low pressure that's so dangerous in the center of a tornado. It's more a matter of the high winds that are <em>caused </em>by the low pressure.
Answer and Explanation:
In optics, a CoC(Circle of Confusion) is defined the minimum cross section of a paraxial bundle of rays made by a lens which is sphero-cylindrical type and can be viewed as an optical spot, which do not converge perfectly at the focus while a point source is being imaged due to spherical aberration.
The Circle of Confusion is also referred to as circle of indistinctness or a blur spot