Can someone please help me with these two problems. 125% v ViewZoom Insertbe Cha

Question

Can someone please help me with these two problems.

125% v ViewZoom Insertbe Chart Text Shape Medla Comment Format Document Quiz - PHYS 4A Lab (10 points) Time (select one) o Wednesdays at 11:00 am Wednesdays at 2:00 pm 1. The object of mass 2 kg below is in an elevator accelerating downwards at 2 m/s2. What is the tension in the string holding up the mass? iim My confidence in my ability to calculate this result is: 1 234 5 Nothing selected. Select an object or text to format. 2. I have a two-body system shown in the figure. Here, starting from rest, the cart M has a mass of 2 kg and the angle of inclination is 30°. The cart will travel up the inclinc, passing through the photogate (which measures speed). If the hanging ass is 5 kg, how fast will the cart be traveling by the time it reaches the photogate? My confidence in my ability to calculate this result is: I2345 pulley photogate hanging 701 characters

Explanation / Answer

here,

1)

mass , m = 2 kg

accelration ,a = 2 m/s^2

the tension in the string holding up the mass , T = m * ( g - a)

T = 2 * ( 9.81 - 2) N

T = 15.6 N

the tension in the string is 15.6 N

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